Who are reindeer's enemies?

Answer 1

There are many things that kill reindeer such as Golden Eagles who prey on calves, Wolverines, Polar Bears, Grey Wolves, Dire Wolves, Cave Lions, American Lions, Hunters, blood sucking insects, short-faced bears, cave hyenas, smilodons, jaguars, cougars, possigly a groud sloth and, in a special case, a Greenland Shark.
Reindeer's enemies are wolves, wolverines, coyote and bears. Especially grizzly bear.

Answer 2

There are many things that kill reindeer such as Golden Eagles who prey on calves, Wolverines, Polar Bears, Grey Wolves, Dire Wolves, Cave Lions, American Lions, Hunters, blood sucking insects, short-faced bears, cave hyenas, smilodons, jaguars, cougars, possigly a groud sloth and, in a special case, a Greenland Shark.
Reindeer's enemies are wolves, wolverines, coyote and bears. Especially grizzly bear.