Humpback whales are truly a global species. These mammals have one of the longest migrations around, traveling up to 10,000 miles in a single year — and their beautiful, complex songs are heard by sailors and tourists in every corner of the map. Throughout the 17th century, humpback whales were hunted primarily for their oil to use as a lamp fuel. By the time whaling was officially banned, humpback populations worldwide had been reduced by 95%.
The comeback was slow, but began in 1946 with the establishment of the International Whaling Commission to oversee whaling practices. Hunting humpbacks was officially banned in 1963, and in 1986, a worldwide commercial whaling moratorium gave populations another foothold on the path to recovery. Today, an estimated 84,000 humpbacks swim the world’s oceans, and many populations are still on the rise, even approaching their pre-whaling numbers.
Explore more stories from the full Conservation Comeback series now.
Frog saunas could help fight chytrid, Iberian lynx are no longer endangered, and scientists in Hawaii are breeding heat-resistant corals.
Around ten million tons of plastic enter the world's oceans each year. Learn about a few of the ways that YOU can help reduce ocean plastic.
Boyan Slat is the founder and CEO of The Ocean Cleanup, a non-profit organization developing and scaling technologies to rid the world's oceans of plastic.
Alecia has held many career positions, from software trainer to office administrator; however, outside of work she is heavily involved in volunteer associations focusing on education. Most recently, Alecia’s Clean Harbours Jamaica team has, in partnership with The Ocean Cleanup, removed over 1 million kg of garbage from the barriers and by extension from the […]
It’s estimated that up to 14 million tons of plastic end up in the world’s oceans every year—and 80% of it pours into the sea from polluted rivers. In Kingston, Jamaica, Alecia Beaufort and her team at Clean Harbors Jamaica have partnered with The Ocean Cleanup to stop the waste before it ever reaches the sea.
Boyan Slat’s team at The Ocean Cleanup has developed and deployed an open-ocean system that can haul in 7000 kilos of garbage in just a day and a half. Their current target is the Great Pacific Garbage Patch. The hope is that a fleet of these systems will remove 90% of floating ocean plastic by 2040.
Black-footed ferrets are still alive today thanks to the combined efforts of scientists, zoos, tribes, and other partners across North America. The work hasn’t been easy — it’s involved a decades-long captive breeding effort, wild releases at 30 different grassland sites, and even the development of a vaccine to protect against plague! It’s been a […]
Black-footed ferrets nearly went extinct several times in the 20th century. Today, the current largest threat to their survival is a non-native disease called sylvatic plague.
When plowing, poisoning, and non-native plague wiped out nearly 95% of prairie dogs, the ecosystem collapsed around them. Today, conservationists control the disease by providing vaccine-laden treats called “Fip Bits” to help the prairie dogs — and those that depend on them — finally rebound!
With over 25 years of experience in the wildlife field, Kristy Bly’s expertise is on the conservation and restoration of black-footed ferrets, black-tailed prairie dogs, and swift fox in the North American Great Plains.
Hope for Hawaiian honeycreepers, beavers in London, a snake's triumphant return, and rewilding on college campuses.
Fishing gear entanglement happens when fishing gear like nets and longlines gets caught around the limbs or body of an animal, causing serious injury or death.
Callie Veelenturf is a marine conservation biologist specializing in sea turtles, the founder of The Leatherback Project, and a National Geographic Explorer.
Aida Magaña Manzzo is a nautical engineer and community leader for the Saboga Wildlife Refuge. She has been recognized as a Hope Spot Champion for her marine conservation efforts in the Pearl Islands.
Panama recognizes the rights of sea turtles under national law, including their right to a healthy environment. To figure out which places are critical to the turtles’ well-being, biologist Callie Veelenturf and children from affected communities are tagging dozens of turtles and tracking them by satellite.
The Pearl Islands were a paradise off the Pacific coast of Panama, until industrial fishing fleets threatened fish stocks and endangered wildlife there. Local residents have teamed up with biologist Callie Veelenturf to propose—and pass—a new national law that grants legal rights to nature itself.
Marine biologist Callie Veenlenturf came to the Pearl Islands to study sea turtles, but soon helped spark passage of remarkable laws that grant legal rights to nature and the turtles themselves.
Sea otters are a marine mammal beloved by many, but it wasn't long ago that they teetered on the brink of extinction. The international fur trade decimated sea otter populations starting in the 1700s, and by the early 1900s, their wild population fell to less than 1% of their original numbers.
More than 35% of land in Belize is protected, and that’s been good for jaguars that live in these refuges — but for populations to thrive, the cats need to move from one safe area in the north to another in the south across a landscape of farms and towns.
Upcoming: Episode 28: Cougar Crossing
Los Angeles is well known for its celebrities, so when the fearless cougar P-22 gained fame for making its home in the midst of the city, he inspired an effort to build the world’s largest wildlife crossing and helped spark a national campaign to support crossings and corridors everywhere. After years of research, local biologists and advocates like Beth Pratt pinpointed the vital location for a wildlife crossing to be built to restitch an entire ecosystem. Now a decade later, P-22’s story continues to inspire the very construction of this landmark crossing and expands what’s possible for urban wildlife coexistence.
At the age of 18, Boyan Slat founded The Ocean Cleanup and set out to clean plastic from the Great Pacific Garbage Patch. Ten years later, the team is installing catchment systems at the mouths of rivers to stop plastic pollution of the seas at their source.
Conservationists worldwide use camera traps to study the movements of wild animals. In Belize, they’ve deployed one of the longest-running grids of cameras on the planet to track the hidden lives of jaguars and to focus protections in the dwindling rainforest.
Jaguars are top predators that need large spaces in which to live and hunt. In Belize, 35% of the land has been protected—but these areas are divided into two large clusters, connected by a crucial and dangerous bottleneck that the cats must navigate to survive.
Black-footed ferrets have come back from near extinction thanks to breeding, cloning and reintroduction programs that have brought them back to the western prairie. Now, these wild populations are threatened by a plague that targets the prairie dogs they depend on for food — and even the ferrets themselves. The best chance? To vaccinate both predator and prey to keep both populations alive.
Personhood for whales, a big conservation study, and egg-citing news for sea turtles
Emma Sanchez is a wildlife researcher and the country coordinator for Panthera Belize, an organization that pioneered jaguar research and established the first official protected area for jaguars.
Ray Cal is a wildlife ecologist and the manager of Runaway Creek Nature Reserve in central Belize. He is in charge of field operations and maintaining security, so that Runaway Creek continues to stay a model wildlife haven.
Brazil has over a million miles of roads, and Fernanda Abra has devoted herself to making them less dangerous to local wildlife and biodiversity.
With just a few changes, you can transform your yard or balcony from a wildlife desert into a wildlife sanctuary. And, if you convince your neighbors to do the same, you could even make your neighborhood into a habitat corridor for wildlife!
Just like humans, wild animals often need to cross busy roads as they roam. But unlike us, they can’t rely on stoplights and crosswalks. That’s where wildlife crossings come in.
Fernanda Abra is a biologist with a Ph.D. in Applied Ecology and is currently a postdoctoral researcher at the Smithsonian Conservation and Sustainability Center.
Wildlife corridors are an invaluable conservation tool. These ribbons of habitat connect landscapes fragmented by human development or roadways, giving animals the ability to roam in search of food, water, and mates.
The Brazilian treetops are full of creatures like monkeys and sloths living high above a forest floor segmented by dangerous roadways. The Via Fauna team is installing arboreal crossings made of cheap, local materials to reconnect the forest canopy — and allow these creatures to once again move freely throughout their landscape.
Brazil has more biodiversity than any other nation on Earth, but it also has more than a million miles of roads. Biologist Fernanda Alba and her team are establishing underpasses across the country that allow big terrestrial animals — to date, the team has documented over 40,000 safe wildlife crossings.
In the past 40 years, golden lion tamarins became a symbol of conservation success when 150 zoos worldwide assisted a breeding and reintroduction program that brought their numbers in the wild from 200 to over 3700. Then, yellow fever jumped from humans to the primates and began to decimate their population—taking a third of the population in just two years.
Golden lion tamarins live only in small fragments of the Atlantic Forest. In 2021, an outbreak of yellow fever took nearly one third of the already endangered population, but teams were able to modify a vaccine for humans to help immunize the population against future outbreaks.
Golden lion tamarins were nearly wiped out in the 1970s, but worldwide efforts by 150 zoos helped bring the species back from near-extinction. Today, local conservationists are expanding the forests in Brazil, and the wild population has grown from under 200 to now over 4800 tamarins!
Conservationists are hard at work protecting golden lion tamarins and other wildlife from extinction, and now you can help them from the comfort of your own home.
Andreia started working with the conservation of the golden lion tamarin in 1983 as a volunteer in environmental education actions. In 1984, she became part of the golden lion tamarin reintroduction team. She is currently the coordinator of the field management of golden lion tamarins.
Marcos da Silve Freire has more than 30 years of experience in microbiology, with an emphasis on vaccinology. He is responsible for developing the yellow fever vaccine for golden lion tamarins.
Luís is a geographer who graduated from São Paulo University in 1987. He began his career working for natural areas protected by heritage in São Paulo, especially Serra do Mar.
Smack-dab in the middle of Rio de Janeiro, stands the world’s largest urban rainforest…and it needs our help. To combat a century of deforestation and hunting, a team of researchers are repairing the forest’s forgotten web of life, one species at a time.
Plants can’t move on their own, so they usually need a little help to spread their seeds far and wide. Animals that scatter these seeds — often by eating the fruit and pooping out the remains — are known as seed dispersers.
Alexandra Pires is currently an associate professor at the Federal Rural University of Rio de Janeiro, where she teaches the subjects of Natural Resources Conservation and Fauna Management.
Marcelo Rheingantz is a biologist at the Institute of Biology, Federal University of Rio de Janeiro and Executive Director of Refauna. He has dedicated his research career to the ecology and conservation of vertebrate populations in Brazil and South America.
In 2010, Fernando launched the concept of refaunation, and from then on coordinated the Refauna project, which reintroduced populations of agoutis, howler monkeys and tortoises in the Tijuca National Park, in Rio de Janeiro.
To restore the park to its former glory, researchers knew which animals needed to be reintroduced: monkeys, rodents, tortoises, and even dung beetles all played crucial roles in keeping the forest healthy.
Agoutis are large, adorable rodents found in Central and South America – and they’re critical players in keeping forest ecosystems healthy.
Brazil is a trove of biodiversity — habitats like the Atlantic Rainforest, urban forests like Tijuca National Park, and more coastlines, rainforests, and rivers that are rich with endemic plants and wildlife.
Jay Penniman has worked as an independent contractor doing forestry, wildlife, and vegetation surveys, management, and assessment. Since 2006, he has worked for the Pacific Cooperative Studies Unit of the University of Hawaii managing the Maui Nui Seabird Recovery Project.
Jenni Learned is a broad-spectrum ecologist on the Maui Nui Seabird team with experience working across diverse environments.
A common conservation technique on islands is the creation of predator-free zones to exclude invasive species, from mice to feral pigs, from recovering habitats.
The bald eagle has been a national symbol of the United States since 1782 — but not that long ago, this iconic species was on the verge of a complete extinction.
Researchers are trumpeting a welcome piece of news for African elephants. In the last 25 years, populations in southern Africa have reversed their declines, and even started to grow, according to a new study in Science Advances.
Coral reefs around the world are threatened by rising ocean temperatures, but hope is growing off the coast of Hawaii. There, researchers at the Coral Resilience Lab selectively breed corals to withstand ever-increasing amounts of heat stress.
This community in Hawaii is rallying together to study and protect local corals. Students, volunteers, and scientists work to collect and categorize fragments broken off from the reef, which then become candidates to breed before the new coral is reintroduced back into the ocean.
Corals are vital to ocean health, but they’re susceptible to rising water temperatures and can “bleach” under too much heat stress. Hawaii’s Coral Resilience Lab is breeding corals that are resilient to these hotter ocean temperatures – then they populate reefs with new corals that can finally beat the heat.
Coral reef bleaching stands apart as a crisis with innovative, long-term solutions.
Kira Hughes is the Managing Director of the Coral Resilience Lab at the Hawaiʻi Institute of Marine Biology. This includes conducting research, grant writing and administration, engaging stakeholders, establishing and maintaining partnerships, and communicating science.
Madeleine Sherman is the Project Manager for the Coral Resilience Lab at the Hawai‘i Institute of Marine Biology, and manager of the Lab's outreach and education programs.
Corals are known for their vibrant hues, but when they get stressed, they turn a ghostly white in a process known as coral bleaching. To appreciate why this happens, you need to understand the unique relationship that forms the basis of coral reefs.
The California condor is a North American wildlife icon — the continent's largest land birds and one of nature's most industrious scavengers — and also one of our most critically endangered avian species.
Our relationship with gray wolves is a complicated one, spanning centuries of tension and dating back to the beginning in the 1600s with North American colonization.
The recovery of the American Alligator is considered one of the biggest success stories of an endangered species – ever.
Along the Pacific coastlines of North America, the Northern Elephant Seal may be a common sight in today's waters — but that wasn't always the case.
Florida manatees are in dire straits, having lost much of their available habitat and food sources in recent decades. Thanks to the work of Zoo Tampa and other researchers, the population is finally able to recover and return to the rivers they once called home.
Florida’s Crystal River used to be a rich seagrass ecosystem: a perfect source of food for the many manatees that once thrived there, before an invasive algae overtook the riverbed. Now, efforts to restore the habitat are underway – and they’re working!
When an invasive algae in Crystal River wiped out the eel grass that manatees need for food, the community rallies to restore the river and save the animals that call it home.
Lisa Moore, a fourth-generation Floridian, is an entrepreneur and philanthropist dedicated to the efforts to preserve, protect, and restore environmental resources.
Jessica Maillez is the Senior Environmental Manager at Sea and Shoreline. She has designed, permitted, and managed multiple large scale restoration projects along Florida’s coastline.
The United Kingdom and Ireland might not seem like the wildest places on Earth, but a growing popular movement here, known as rewilding, seeks to reverse millennia of environmental degradation.
Derek Gow has turned his farm into a breeding center to help rewild all of Britain. He’s raising rare white storks, native harvest mice, water voles that can help restore wetlands throughout the country.
Derek Gow has helped bring beavers back to Britain, and their impact on local landscapes and biodiversity has been immense. Now, he’s scaling up a breeding program to export another wetland engineer—the water vole—all across the country.
For years, Derek Gow worked his 400-acres in western England as a conventional sheep and cattle farm. Now, he’s using his experience with British rewilding projects to return his land to what it once was: a healthy, biodiverse ecosystem.
Pete Cooper is a wilding ecologist at the Derek Gow Consultancy, where he works on a variety of species reintroduction and rewilding projects. He leads a project trialing the captive breeding and reintroduction of glowworms, as well as working closely on reintroduction projects for other species including the harvest mouse, wildcat and turtle dove.
Derek Gow is a farmer, nature conservationist, and the author of Bringing Back the Beaver. He lives on a 300-acre farm on the Devon/Cornwall border, which he is in the process of rewilding. Derek has played a significant role in the reintroduction of the Eurasian beaver, the water vole and the white stork in England.
Often the first and most effective strategy to healing a landscape is to pay attention to how ancestral wildlife, like native plants and animals, once shaped and strengthened these natural spaces.
Just as they have for millions of years, sea turtles by the thousands make their labored crawl from the ocean to U.S. beaches to lay their eggs. This year, record nesting was found in Florida and elsewhere despite growing concern about threats from climate change.
Leatherback turtles never stop swimming! This Florida lab uses tiny tethers so young hatchlings can swim constantly but avoid bumping into the wall of the tank. When they’re old enough, the young turtles are fitted with satellite trackers and released into the wild.
Beaches across Florida are a key habitat for nesting sea turtles. To keep hatchlings safe, teams patrol the beach at dawn to look for turtle tracks, safeguard nests, and even help those left behind make their way to the sea.
Sea turtles nesting in southeast Florida face a range of manmade threats — and for leatherbacks, researchers still know very little about the species and how to protect them. In the battle to save leatherback sea turtles, knowledge is key.
David Anderson is the Sea Turtle Conservation Coordinator at Gumbo Limbo Nature Center. He supervises the collection of sea turtle nesting data along Boca Raton’s five miles of beach.
Dr. Jeanette Wyneken is a Professor of Biological Sciences at Florida Atlantic University (FAU), located on the southeastern coast of Florida. She has more than 40 years of experience studying the biology, conservation, and health of sea turtles.
Whether becoming a citizen scientist, or simply a vocal ally for sea turtle protection, there are easy opportunities for anyone to get involved in saving some of our favorite ocean-bound creatures.
When beavers were hunted to extinction in England some 400 years ago, the wetlands they maintained largely vanished. Now, as part of Britain’s broader rewilding mission, conservationists are returning beavers to the landscape—and boosting biodiversity in the process.
The sex of baby sea turtles is determined by the warmth of their nest, so conservationists in Australia are protecting hatchlings on the mainland (where dark sand means warm temps and more females) from threats—and help ensure more future mammas make it to the sea.
Dogs in Australia are sniffing out koala dung to help cities like Brisbane know where to put highway overpasses and reconnect isolated populations of the adorable marsupials.
Dogs are often thought of as humans’ best friends. But in Australia, they’re partnering with people to save other species from grave threats to the island continent’s unique fauna.
Dr. Colin “Col” Limpus is chief scientist and a leading researcher for the Threatened Species Unit in the Queensland government’s Department of Environment and Heritage Protection.
Rob Geary is an experienced sea ranger with over 10 years of working in natural resource management and undertaking projects to protect and conserve threatened species and their habitats. He enjoys fieldwork and has extensive experience with feral animal management to protect marine turtle clutches and hatchlings from predation. He has undertaken numerous fauna surveys, […]
Axolotls can regenerate entire limbs, eyes and even their brains—and make a great “second date love” for one scientist.
NASA satellite imagery has recently been able to show that beavers banished to rural Idaho have made significant improvements to waterways in the region.
The lodges and wetlands that beavers build aren’t just places for their families to live and sleep (and snore!) — they’re havens where many wild creatures can thrive.
Beavers are back in England for the first time in 400 years, and their dams are already protecting villages from flood and helping farmers in times of drought.
Eurasian beavers were driven extinct in Britain centuries ago. But now these preeminent ecosystem engineers are back—charming many Britons, perturbing others, and all the while stimulating a healthy debate about whether the island nation is ready to embrace a wilder future.
Animals that transform their surroundings — "ecosystem engineers” — build, dig, and even poop new environments into existence, creating homes for themselves and others.
Beavers are a wonder to behold. They are ecosystem engineers–able to modify their habitats and change landscapes in ways that cultivate biodiversity and create wetlands. That ability makes them keystone species–they have an outsize influence on their ecosystems and the species they live with. But as a species, they also need help and protection, as […]
Oysters posses an amazing ability to filter water. They naturally filter and clean the water they live in, which makes an ongoing effort to put a billion of them in New York Harbor a pretty big deal.
Landscape architect Kate Orff is working with nature to protect New York City from future threats like rising seas and superstorms.
A taste for waste turns these creatures into pollution-fighting machines.
The Billion Oyster Project and Living Breakwaters are turning to nature for solutions to human-caused problems, and reviving the city’s relationship with the wild.
While New York Harbor is characterized mostly today by its neighboring industry and commercial traffic, before the impact of humans the waters were a biodiversity hotspot.
