The recovery of the American alligator is considered one of the greatest endangered species success stories. By the 1950s, decades of overhunting, critical habitat lost, and pollution from pesticides brought the gator dangerously close to extinction. The tide finally began to turn in 1962 when Florida lawmakers outlawed gator hunting in the state. The species was granted federal protection soon after, in 1966. These measures paid off: today there are an estimated 5 million American alligators thriving once again in the southeastern United States.
Explore more stories from the full Conservation Comeback series now.
Upcoming: Episode 24: Protecting Paradise
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.
In order to scale up reforestation, Mauricio Ruiz and his organization ITPA have partnered with the drone fleet at MORFO. Each drone can plant up to 50 hectares of forest per day, which is 50 times faster than planting by hand.
Many of the world’s most beloved frogs and amphibians are headed for extinction, but inside “The Ark” in Panama, some of those threatened species are given a fighting chance.
Deep in the Panamanian forest, researchers are looking for “lost frogs” — species believed to have gone extinct, but that may be holding on in the wild.
In the heart of Panama, scientists have created an artificial rainforest to protect endangered frogs from the worst wildlife disease ever recorded.
Amphibians need our help! Luckily, when it comes to the question of how to help out local frogs, the answer can be surprisingly simple: just add water. Frogs rely on water to lay their eggs and for the tadpole stage of their lifecycle. Even adults typically cannot survive long in dry conditions.
Harlequin frogs (also called harlequin toads) are a group of beautiful, brightly-colored toads found in Central and South America. One species in particular, the Panamanian golden frog, is considered the national animal of Panama and a flagship species for amphibian conservation.
Chytridiomycosis — often called chytrid or BD — is a highly infectious fungal disease linked to the widespread decline of more than 200 amphibian species around the world.
Dr. Gina Della Togna is the Executive Director of the Amphibian Survival Alliance and a Research Associate of the Smithsonian Tropical Research Institute.
Brian Gratwicke is a conservation biologist who leads the amphibian conservation programs at Smithsonian's National Zoo and Conservation Biology Institute.
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.
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.
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.
Hawai’i is home to a broad, beautiful array of birds species found only on its islands—like the stunningly diverse honeycreepers, many on the border of extinction. Now, a local team is removing invasive predators, restoring habitats, and battling mosquito-borne diseases to protect honeycreepers from their latest threat: avian malaria.
In addition to the impact of avian malaria, Hawai’i’s endangered honeycreepers are threatened by habitat loss and invasive predators — two problems that harm native bird populations everywhere, likely in your own back yard. Whether you’re looking to help Hawai’i’s birds, or if you’re hoping to make a difference to protect birds locally, the solutions […]
New tracking technologies are uncovering the flight paths of endangered shorebirds — and the obstacles they face along the way.
All around the world, seabirds provide a critical link between land and sea. On Hawai’i, ecologists are working to protect two vital shearwater species that helped life first take hold on these islands.
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.
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.
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.
Since the Endangered Species Act was passed in 1973, it has become one of the most powerful tools to fight extinction in the United States.
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.
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.
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.
Ecologists from Mexico’s National Autonomous university relaunch a fundraising campaign to bolster conservation efforts for axolotls, an iconic, endangered fish-like type of salamander.
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.
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.
In 2021, an Oregon farmer decided to convert his 400-acre farm back to the wetland habitat. Now, just two year later, the new wetland supports migrating waterbirds and endangered fish.
Indigo snakes prey on other snakes—even venomous ones—but are still docile-enough to be handled by young children. Now, a one-of-a kind breeding program is raising these gentle giants and returning them to forests across the southeastern US.
Gopher tortoises create deep burrows that give critical shelter to over 350 species of insects, mammals, birds, and amphibians throughout the southeastern US. Their blood may be cold, but their heart is all warm inside!
In the face of extreme habitat loss, wildlife biologist Dr. Chris Jenkins puts an ambitious plan in motion to save two uniquely American reptiles — the eastern indigo snake and the gopher tortoise — and the longleaf pine forest they call home.
Dr. James Bogan is the Director for the Central Florida Zoo’s Orianne Center for Indigo Conservation, the only facility that breeds the eastern indigo snake for the sole purpose of reintroducing the offspring into regions where the population is believed to be locally extinct.
Christopher Jenkins has worked with Wildlife Conservation Society, the U.S. Forest Service, and the U.S. Fish and Wildlife Service. His current projects include land protection in longleaf pine ecosystems, ecology and conservation of timber rattlesnakes and the conservation of giant tortoises.
A flagship species is a creature that serves as the “face” of a conservation campaign to get people invested in the survival of one species can help preserve that creature’s habitat.
Reptiles are in need of support from conservationists and nature-lovers worldwide. Learn how to create more reptile-friendly environments and help build a stronger ecosystem for all types of critters near you.
After decades of fighting to regain ownership of their ancestral lands, the Winnemem Wintu Tribe marked this year’s Indigenous People’s Day with the purchase of 1,080 acres of land along the McCloud River in northern California.
Prince William got a first-hand look at the waters of New York City on Monday on a visit to an oyster reef restoration project, after arriving in the United States for an environmental summit connected to a global competition for solutions to climate change challenges.
A century ago, the longleaf pine forests of the southeastern United States were flooded with birdsong—and the musical hammering of millions of red-cockaded woodpeckers. But by 1995, deforestation had caused woodpecker numbers to plummet to 4000 breeding groups.
Biologists in Mexico are learning how to save endangered salamanders by partnering with unusual allies: a group of nuns.
Axolotls can regenerate entire limbs, eyes and even their brains—and make a great “second date love” for one scientist.
The axolotl has been called a “conservation paradox” — a creature that is ubiquitous in pet stores, science labs and pop culture… yet almost extinct in the wild.
The axolotl is a type of salamander native to the canals and lakes around Mexico City, characterized by its flamboyant, feathery external gills.
Carlos Uriel Sumano Arias is a researcher with the Universidad Nacional Autónoma de México (UNAM).
Luis Zambrano was born in Tampico, Mexico, and earned a degree in biology from the Universidad Nacional Autónoma de México (UNAM). He obtained his doctorate in ecology at UNAM, studying the effects of carp on benthic communities in experimental ponds. Zambrano’s research specialities are aquatic ecology and restoration. A founding member of the Mexican Society […]
As their popularity as pets continues to rise, so does the risk of increasing demand for wild-caught axolotls. Here are some ideas for how you can help this beloved endangered species and other salamanders.
NASA satellite imagery has recently been able to show that beavers banished to rural Idaho have made significant improvements to waterways in the region.
Removing dams from the Elwha River allows salmon to return upstream—and bring precious nutrients from the sea that eventually spread throughout the forest.
For decades, the Lower Elwha Klallam tribe fought to remove unwelcome dams on their river—and finally won.
A century-long campaign to take down the Elwha River dams climaxed in 2011with the largest dam removal project in history. Now, a decade later, Native American scientists and colleagues are chronicling an inspiring story of ecological rebirth.
From the revitalization of riverbeds to the genetic diversity of top predators, Kim Sager-Fradkin is tracking an ecological resurrection in Washington’s Olympic Peninsula.
Inspired by the success of the Elwha dam removal model, conservation advocates are building diverse coalitions to pursue additional salmon recovery projects across the Pacific Northwest region.
Young environmental activists scored what experts described as a ground-breaking legal victory when a Montana judge said state agencies were violating their constitutional right to a clean and healthful environment by allowing fossil fuel development.
The red-cockaded woodpecker is only found in America's dwindling longleaf pine forests, where they create tree cavities that provide homes for other birds and small mammals.
People are setting fire to pine forests in North Carolina to help protect an endangered woodpecker, and many other creatures as well.
On an army base in North Carolina, soldiers and scientists have turned their conflict over an endangered species into collaboration—and conservation success.
One of the most inspiring conservation stories in American history is playing out on, of all places, a live-fire training ground at an Army base in North Carolina. There, the endangered red-cockaded woodpecker has been given a new lease on life.
From the Associated Press: The largest dam removal project in United States history is underway, but in some ways, removing the dams is the easy part.
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.
Rehabilitating oyster reefs can restore the balance of entire water ecosystems. Learn how to get involved today!
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.
