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Wildlife

This scrotal male certainly isn't sheepish.

New Research

The Earliest Mammals Kept Their Cool With Descended Testicles

But if free-swinging sperm sacs are the norm, then why did undescended ones evolve four separate times?

Mei Xiang, the female panda in residence at the Smithsonian's National Zoo, may be pregnant with a cub to be born later this summer.

Pandamonium

A Primer on the Zoo’s Possibly Pregnant Giant Panda

In anticipation of a potential new cub, here’s a refresher on Mei Xiang and Tian Tian’s storied past

New Research

Australian Feral Cats Eat More Than a Million Reptiles Per Day

A new study shows cats snack on 258 reptile species, and could push some to the brink of extinction

A Canines for Conservation handler and his dog inspect a vehicle as a part of a 12-week training course.

It’s Pooches vs. Poachers in the Fight Against Wildlife Smugglers

A new breed of law enforcement is on the scene—and its bite is stronger than its bark

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