Originally posted by sonhouse
I think the penguins would learn to avoid said bear, they watch out for predators and if they live close to water, they can get away. Some of them, however, live 40 or more miles from water. I imagine they would move a lot closer to open water if bears were introduced into their habitat.
Obviously the bear would get a few, just like when they fish for salmon, they get some but the majority gets away.
Penguins are very slow on 'land' and they have to spend large periods of time on land.
They have not had to evolve to deal with land predators and so the likely result of introducing
a major land predator is likely going to be the same as the historical instances of the introduction
of land predators (often cats) to places where the native creatures have not evolved to deal with
The native creatures go extinct.