From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

The Bee Hummingbird is just 5-6 cm long and weighs only 1.5-2 grams, smaller than a finger and lighter than a grain of rice, ...

From Alaska across southern Canada all the way south to Tierra del Fuego — the southernmost point of South America — ...

Don't let their size fool you — hummingbirds are small yet mighty birds. These unique facts about the adorable species will ...

Paleontologist and Geologist Dr. Ken Lacovara joins WIRED to answer the internet's burning questions about fossils. Can we ...