Bison lick each other's wounds after a traumatic experience

American bison have been observed licking each other’s wounds, a stress-reducing behaviour not documented in a hoofed mammal until now.

When animals sustain injuries, licking is often the first line of defence for wound care. Licking a laceration or puncture can remove debris that causes infection and help wounds heal faster. The saliva of some animals – including humans – has antibacterial properties and supports tissue and nerve regrowth.

While female bison have been observed grooming unrelated calves, reports of …