Learn what a Calliope hummingbird looks like, where to find these tiny birds in the U.S., and how to attract them.
Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery.
The Galápagos rail, a small, black, ground bird, hadn’t been seen on Floreana Island in the Galápagos since 1835, when Charles Darwin first described it. That changed recently when researchers ...
The most striking discovery was a nest built on an abandoned foundation pile in Amsterdam’s Rokin canal. Over decades, it had ...