The recipe for a perfect date night: a rom-com, a bowl of popcorn, and a syringe of testosterone — at least for gerbils, anyway.

A medical entomologist points to metabolism, body odor, and mindset.

Since our arrival, humans have driven a seven-fold drop in the mass of wild land mammals.

These salamanders are helping unlock the mysteries of brain evolution and regeneration.

Sex can be a death trap even for modern toad and frog species.

Some animals were even assigned their own lawyers.

Imagine Flipper trained in the art of espionage.

When we feel sick, it's not just the pathogen to blame. Our brain cranks up the temperature, and the neurons responsible finally have been found.

Organisms respond in similar ways to similar circumstances.

People who rate themselves as highly knowledgeable about cats are more likely to interact with cats in ways they don't like.

Here’s how to appreciate them from a distance.

Scientists turn to nature to improve a ubiquitous building material.

When scientists tested this hydrogel on mice, they had cleaner teeth than most humans.

Hint: It wasn't always an asteroid.

Americans on average consumed about 58 pounds of beef and veal in 2019 – compared with a global average of 14 pounds.

Rock art in northern Australia depicts marsupial lions, giant kangaroos, and other megafauna that populated the Land Down Under long ago.  

Nietzsche both wished he was as stupid as a cow so he wouldn’t have to contemplate existence, and pitied cows for being so stupid that they couldn’t contemplate existence.

The 557-million-year-old specimen challenges the theory that animal body plans were laid out in the Cambrian explosion.

Human beings are descendants of these early tetrapods – at least those who made a new life on land.

Let's hope that squid don't evolve lungs and legs, or humanity might be in real trouble.

The answer is both disappointing and exciting.

The zebras were originally part of a newspaper tycoon's private zoo. Now they roam the San Simeon grasslands, growing in numbers. 

Turning off a gene called “Myc” has a surprising effect in male fruit flies: They start courting other males.

It might be good for your memory.

Mammals have a history stretching back 325 million years. To study that ancient history is to know our own origins.

Predatory dinosaurs with big skulls tend to have tiny arms. Researchers propose there might be a direct link between those traits.

Flies are in no way smart, but they experience time in an almost Matrix-like fashion.

Scuba divers often appear to be swimming through a calm and muffled universe. This couldn't be farther from the truth.

The good news is that it can be countered with acne medication.

New research finds that dinosaurs were already adapted to living in cold climates before the end-Triassic mass extinction. But how?