The long-tailed weasel ( Mustela frenata) is the largest of our three species. It measures 12 to 20 inches, including a ...

If you’ve ever seen both a ferret and a weasel, you’ll agree that it can be pretty difficult to spot the difference between the two. Let’s see if we can make it a little easier by comparing them in ...

Weasels are often difficult to capture on camera, making it hard for conservationists to track their population numbers. This study aimed to determine the best material to use as bait for camera traps ...

Of all the weasel species to worry about, the "least weasel" is the most worrisome. As the world's smallest carnivore, the least weasel is notoriously difficult to track down and has only been seen in ...

Weighing as much as a cup of walnuts and resembling a squeaky dog toy, the short-tailed weasel is easy to underestimate. The spunky little creature that springs through snow drifts and woodpiles all ...

MOUNT RAINIER NATIONAL PARK, Wash. — The elusive weasel-like mammal poked its head out of the wooden crate, glanced around and quickly darted into the thick forest of Mount Rainier National Park — ...

A weasel stands on a log carrying a mouse at night. Weasels are notoriously difficult to capture on camera, and researchers are working to find the best way to draw them out of hiding. When monitoring ...