Neither as the black bear is from North America and the lion from Africa and Asia. They never meet in nature.
The lion would win, unless the black bear is really big.
It depends on who is bigger. If the black bear happened to kill the lion, the black bear would get badly injured.
The giant black bear would win, but it would be injured.
A lot of people will say lion , however they are wrong because they are just stupid lion fans that know nothing about a tiger's advantages. The tiger will win because it is stronger! heavier, more agile, bigger, has longer canines, is a better fighter, is smarter, and is not lazy and waits for females to hunt. Tigers rule and lions suck
That would depend on the species of bear. For instance, a lion could more than likely defeat a black bear, but a grizzly bear would be a far more dangerous opponent.
polar bear
The atlas bear would win.
Probably the black bear.
a lion mostly
The grizzly bear would probably win
Yes. Because its a fight for food. So if one of them ever crosses paths they would fight. But a bear would win because of the size of the Mountain Lion. A fully grown male lion would even lose
African Lion
Only in extreme circumstances would a tiger or the lion would attack the black bear. A tiger or a lion is both capable of killing a black bear, but it would take a long time to do so. However, a black bear is more likely to kill a lion or a tiger, but would get serious injuries (to kill the lion) or a long time ( to kill the tiger) while doing so.