Interspecies Hybrids Play a Vital Role in Evolution | Quanta Magazine
Grizzly–polar bear hybrid - Wikipedia
As climate warms, grizzly bears and polar bears interbreed - National | Globalnews.ca
Polar bears are mating with grizzlies to become 'Pizzly Bears'
Grizzly-Polar Bear Hybrid Found—But What Does It Mean?
What do grizzly-polar hybrids mean for polar bears? Scientists debate | CBC News
DNA study clarifies relationship between polar bears and brown bears
The 'pizzly bear': endangered polar bears are mating with grizzlys | Metro News
Grolar Bear — Extinction By Any Other Name | by Veer Mudambi | Medium
Polar Bears, Grizzlies in Canada: Will They Cross-Breed? - TIME
Brown Polar Bears, Beluga-Narwhals and Other Hybrids Brought to You by Climate Change | Science| Smithsonian Magazine
Are “Pizzlies” and “Grolars” the better polar bears? | Polarjournal
BBC - Earth News - Polar bear plus grizzly equals?
Science Blender: Biodiversity, Pizzly Bears and Grolar Bears - Student Essay from the HON 389 Science Blender Course - Schmid College of Science and Technology