Rare camera-trap footage from Białowieża Primeval Forest captured wolves attacking a European bison herd with a newborn calf.

The recording shows the pack surrounding a calf, biting its neck and attempting to drag it away before two cows come to the ...

A herd of bison in Yellowstone National Park decided that the best defense is a good offense, so it worked together to chase off two wolves from a pack known to hunt bison "before they got any ideas." ...