The same can't be said of New Zealand's extinct, but equally unique, mergansers—a group of fish-eating ducks with a serrated bill. The only southern hemisphere representatives of this group are ...

The Anatidae are the biological family of birds that includes ducks, geese and swans ... Five species have become extinct since 1600, and many more are threatened with extinction.

Prague Zoo has made history as the first in Europe, and second in the world to hatch critically endangered Brazilian ...