Salamanders Crossing: This Way to the Vernal Pool!

They may look like random puddles, but some states are building million-dollar tunnels to direct wildlife to these seasonal refuges.
A tarsier

Can Wildlife Adapt to Heat Waves?

Heatwaves have led to widespread deaths of animals like big-eyed tarsiers and flying foxes. Is there hope for species like this as temperatures rise?
Red snapper chromolithograph 1898

Fish Are Smarter Than You Think

Fish intelligence? Yes, many studies have documented the ability of fish to learn from their environment. Fish exposed to a more complicated environment have an edge in learning.
Sika stag deer staring at camera

The Surprising Frequency of Interspecies Mating

Sometimes different but related species can reproduce. When two different species successfully mate, the resulting offspring is called a hybrid.
Gapstow bridge Central Park, New York City

Where Do City Birds Go for the Winter?

Cities can host surprisingly diverse bird species, apart from the ubiquitous pigeons and sparrows. Where do they go in the winter?
Orca Juvenile

Starving Killer Whales Are Losing Most of Their Babies

The southern resident killer whales of the northeast Pacific are in trouble. As habitats and food dwindle, they increasingly miscarry and lose their babies.
acorn lyme disease connection

Can the Acorn Crop Predict Lyme Disease?

Will cutting fewer forests, where tick hosts and their predators live, help curb Lyme disease? Scientists debate.
Yellowstone wolf

Wyoming’s War on Wolves

Gray wolves in Wyoming recently lost their protected status. What will become of a species burdened by myths about its "fierce and furious" nature?
Epiphytes in Costa Rica

How Ants Make Gardens in the Sky

You probably haven’t heard of ant gardens, but JSTOR has. High above neotropical rain forests, ants create elaborate nests, sharing them with epiphytes.

The “Keystone Species” Concept That Transformed Ecology

Dr. Robert Paine's "keystone species" concept was a profound discovery that changed the field of ecology forever.