New research finds grease that coats polar bear fur contains a specialized mixture of chemicals that make it resistant to ...

Polar bear numbers have increased in recent decades, but it’s not because climate change isn’t affecting them. Strict ...

This prolonged fasting drains polar bears’ energy reserves, reducing their ability to reproduce and raise cubs. Without ...

Food deprivation caused by changes in seasonal sea ice has been linked to declines in polar bear populations. However, conservation efforts are limited by a lack of data for most polar bear ...