“Grolar bears” – grizzly-polar bear hybrids remain rare despite global warming, new study reveals

Polar bear in Arctic National Wildlife Refuge.

A first-of-its-kind study published last week on grizzly-polar bear hybrids shows the population remains extremely rare, following fears it would increase with global warming.

The genome analysis of over 800 polar and grizzly bears was performed by researchers from Environment and Climate Change Canada, Polar Bears International, University of Manitoba, MacEwan University, Government of Northwest Territories and San Diego Zoo Wildlife Alliance.