John B. Calhoun's mice had unlimited food, no predators and space to spare. Their population still collapsed into castes and died out — here's what it proves.

A dramatic new interpretation of thylacine anatomy has discovered that the extinct Tasmanian tiger killed prey more like a ...

California-based Lenz Pest Control’s field experience-including 96 rats trapped in three months-shows how pest professionals ...

These early mammals looked like shrews do today. They were small and had a long body, eyes typical for nocturnal mammals and ...

The Tasmanian tiger hunted more like a fox than its fearsome namesake, according to a new UniSC biomechanics study of ...

Resurrected lactoferricin peptides show how a few amino-acid changes transformed an ancient immune defense.

About 200 million years ago, furry, little egg-laying creatures evolved the ability to feed their offspring with a secretion from special glands: milk. Their evolutionary journey continued, and by ...

Humans are the only primate whose breasts stay permanently enlarged. Here's what the fat, the hormones and the research ...

H5N1 has been detected on a US mink farm for the first time, igniting fears the infected animals could present a human ...

Captivated by a portrait in a Boston museum, Sophy Roberts sets out to explore the temples, monasteries and desert landscapes ...

Our focus was on one of the most widely cited cases of evolutionary convergence – the dog-shaped skull of the thylacine, ...

The Unites States and Iran exchange fire over control of the Strait of Hormuz ...