Activists lose long-running battle over 138-acre development on Miami-Dade's pine rockland.
There are 18 animals on the WWF's critically endangered list.
Some of the trees are thought to be at least 200 years old.
OR-7 has inspired activists worldwide. His 17 pups have moved across Southern Oregon and Northern California. Unwittingly, he has done more for his species than any other wolf.
The hunting of Sumatran tigers carries penalties of jail time and hefty fines.
There are about 100 Devils Hole pupfish left, according to the most recent counts.
At least 1,000 turtles die every year from plastic in the ocean.
The hours-long ordeal ended in a joyful moment between the villagers and the mother.
An Obama-era policy had banned the importation of endangered animals.
Veterinarians observed the vaquita porpoise growing weaker within hours after being placed into captivity.
Why 126 countries are trying to save the sharks.
Should we be saving the rhinos or the poachers driving them to extinction? The answer is not as easy as you might think.
Donald Trump may be cutting funding to the environmental sciences, but one near-endangered butterfly is thriving.
With around 30 of its species surviving, the vaquita porpoise is the world's rarest marina mammal.
Activists say overfishing will have devastating consequences for the species.
There is no one definition of 'recovery,' allowing critics to argue the Endangered Species Act isn't working well enough.
Agriculture has made major impact on animals, birds, fish and plants in last 40 years.