sargassum seaweed dumped on beach

The Great Seaweed Invasion

In the Caribbean, sargassum deposits have grown to unprecedented sizes, obscuring the sand and turning nearshore waters into seething sargassum soup.
Blackfoot Albatross chick

The Strange Tale of the Pacific Ocean Biological Survey Program

In the 1960s, over seventy scientists and graduate students traveled to U.S. outlying islands as part of the Pacific Ocean Biological Survey Program.
Two Hummingbirds and an Orchid

Are There “Transgender” Proclivities in Animals?

We tend to think of gender expression as uniquely human. But many species gain advantages by projecting an opposite-sex appearance.
frigate bird

The Astounding Adaptations of Long-Distance Flyers

Frigate birds are truly champion fliers. The birds can fly for weeks without stopping. How do they do it?
European Starlings

What If We Had All the Birds from Shakespeare in Central Park?

According to birding lore, two of America's most invasive bird species were introduced by a misguided Shakespeare fan named Eugene Schieffelin.
Science jars of formalin and fish

What Lies Beneath the Museum?

Paradoxically, museum specimens of long-dead animals may offer us the keys to protecting live ones.
Sapayoa aenigma, Nusagandi, Panama

The Sex Lives of Birds

Deep in a Central American rainforest, ornithologists have discovered that a rare bird has an unusual lifestyle.
Camouflage

Teddy Roosevelt Weighs in on the Evolution of Camouflage

In the years after his presidency, Roosevelt sent a letter to The Condor magazine criticizing painter Abbott Thayer's theory of animal camouflage.

Christmas Bird Count and Citizen Science Through The Years

The Christmas Bird Count is upon us! From Dec. 14 until Jan. 5, birders of all stripes will be participating in a long-running "citizen science" project.