The West Indian manatee, or sea cow, has rebounded in population, particularly in Florida, officials said.
The critically endangered Javan green magpie gets what may be its last shot at survival.
With only three northern white rhinoceroses left on Earth, conservationists are giving up on traditional breeding efforts.
The enormous amphibian is nearly 5 feet long and may be extraordinarily old.
Once sickly and orphaned, the rescued and rehabilitated animal has at last found her prince.
Habitat loss and hunting are among the primary threat factors for the animals on the list.
The 41-year-old female known as Nola saw her health take a quick turn for the worse.
The critter had held the dire designation since 1967.
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