Researchers believe they have found possible evidence that polar bears lived in Scotland during the last ice age. Scientists previously suspected some of the remains found deep in Inchnadamph's ancient Bone Caves belonged to the animals. Experts from National Museums Scotland and universities of Aberdeen and Edinburgh re-evaluated fossils collected from the area of limestone…

The dinner menu for the world’s orca whales is pretty varied. Some, like the crafty transient killer whales in the Pacific northwest, use canyons to hunt other marine mammals, while others feast on salmon exclusively. One pod in the Gulf of California, may have picked up a new skill to go after a pretty big…