four polar bears on floating sea ice
It’s a Bear-Eat-Bear World: Understanding Cannibalism in the Largest Land Carnivores
A new review seeks to understand why the animals sometimes devour members of their own species.
It’s a Bear-Eat-Bear World: Understanding Cannibalism in the Largest Land Carnivores
It’s a Bear-Eat-Bear World: Understanding Cannibalism in the Largest Land Carnivores

A new review seeks to understand why the animals sometimes devour members of their own species.

A new review seeks to understand why the animals sometimes devour members of their own species.

bears
Image of the Day: Bear Sinuses
Amy Schleunes | Apr 10, 2020
A new study finds that the extinct European cave bear’s large sinuses represent a tradeoff between hibernation length and the flexibility of their diets.
Congress Considers Endangered Species Act Amendments
Jef Akst | Sep 27, 2018
Opponents of the proposal call the changes a “wildlife extinction package.”
Image of the Day: Bear Bones
Sukanya Charuchandra | Aug 28, 2018
Modern brown bears carry DNA from extinct cave bears that lived during the Ice Age.
Hibernation Helpers
Catherine Offord | Feb 7, 2016
Gut microbes may help regulate the metabolic changes a bear experiences before and during hibernation, scientists show.
“Yeti” Just a Himalayan Bear?
Jenny Rood | Mar 17, 2015
Latest analysis suggests the yeti is a known bear species, not the new, hybrid species suggested by a previous study.
How Bulgy Bears Keep Diabetes at Bay
Jyoti Madhusoodanan | Aug 7, 2014
A genetic switch in hibernating bears keeps the animals from becoming insulin-resistant. 
a polar bear with its head resting on its paws
The Polar Bear’s Prehistoric Past
Ed Yong | Jul 23, 2012
Genomic analyses reveal that the polar bear evolved between 4 and 5 million years ago, far earlier than previous studies had estimated.