Ambitious projects aim to put dire wolves, woolly mammoths and passenger pigeons back into our ecosystems. But with so many ...

In the icy tundra of Siberia, people speak in tightly wound sounds with consonants packed like frozen gravel. A few thousand ...

The extinct flightless pigeon has captured imaginations for over 400 years. Experts and artists are now revealing how much we ...

The snow petrel, a strikingly white bird with black eyes and a black bill, is one of only three bird species ever observed at ...

India is a land of many presences—visible and invisible, ancient and evolving. To walk its roads is to encounter a mosaic of ...