Knife-toothed reptiles called sebecids went extinct on the mainland 10 million years ago. New fossil evidence puts them on an island 4 million years ago.

If you close your eyes and picture Hawaii, you probably imagine lush green mountains, vibrant flowers, and the melodic song ...

A bird once declared extinct in the wild has just laid eggs in Hawaii. The sihek vanished by the 1980s after the accidental ...

The journey to recovery was long, complex, and in some ways unprecedented, but has achieved an unthinkable success of ...

One of the birds that laid eggs was born at the Cincinnati Zoo, which played a key role in the decades-long project.

A brightly colored bird that has been extinct in the wild for almost 40 years has been introduced on a new island in the ...