The Guam kingfisher was extinct in the wild. Through coordinated breeding, cultural consultation, and careful reintroduction ...

Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and ...

Once-threatened koala populations in parts of Australia are showing surprising signs of genomic recovery, according to a ...

Kakapos, which are reclusive and flightless and can live as long as humans, are found only in New Zealand. They feed on the fruit of the rimu tree.

A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

A new study shows that as humpback whale populations recover from past whaling, older males are gaining a major advantage in reproduction. Early in the recovery, breeding groups were dominated by ...

When a species lives in two distinct types of habitats, individuals with traits better suited to each habitat will thrive and reproduce, naturally selecting descendants with those traits. But what ...