There are fewer than 100 vaquitas left, and this rare species of porpoise may be extinct in three years. Learn more about this endangered creature.
The good news that giant pandas are increasing in number benefits not only the iconic black and white bears, but also animals that share their habitat.
With only about 30 left, the amur leopard is on the brink of disappearing, due to loss of habitat forcing them to live in closer proximity to people.
Things are looking up for the world's rarest cat, whose population has doubled in number over the past decade.
Thanks to a strong recovery, the small minnow has been removed from the federal list of endangered and threatened animals.
Get a snapshot of the plight of Sumatran elephants in this infographic.
A killer whale in a Miami aquarium that has spent more than four decades in a tank will be granted the same protected status as her wild relatives.
The elusive and rare Sierra Nevada red fox has been spotted in Yosemite National Park for the first time in nearly a century.
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