Sleeping dog

Extreme Napping in the Animal Kingdom

Although sleep is ubiquitous for animals with brains, differences in how, why, and for how long animals sleep remain unexplained.

Can You Hear It? The Cicadas Are Back

After 17 years quietly developing under the soil, 3 species of periodical cicadas emerged this summer. How do these insects coordinate?

No, Trophy Hunting Won’t Protect Wildlife

Killing wildlife to save it isn't a viable strategy. We can create diverse, self-sustaining ecosystems without trophy hunting.
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.

How Not to Approach Wildlife in Yellowstone National Park

National parks like Yellowstone are great places to get close to nature, but tourists shouldn't forget that they are also important refuges for wildlife.
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.

Uptown Fox: On Wildlife in Cities

Urban environments are harsh, with only fragmentary remains of natural habitat. But human activity has driven a rise of wildlife in cities.
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.
Puffins

Lessons in Senescence: Not All Animals Age the Same

Senescence--age-related decline in health and reproduction–is something we take for granted in humans, but among animals it’s not necessarily the norm.
National Wildlife Refuge

The History of the National Wildlife Refuge System

Malheur National Wildlife Refuge has been occupied by armed militants since January 2, 2016. But where did the National Wildlife Refuge system come from?