Question

Why don't penguins live in the northern hemisphere?

Answer 1

Penguins never expanded their range to the arctic most likely due to predators. Antarctica has no land mammals. Because penguins are native to the Southern Hemisphere. It's the same reason that wild polar bears aren't found in the SouthernHemisphere or wild bears in Australia.

Answer 2

Answer:

Although penguins are able to swim long distances, they are predominately shore birds and thus do not venture far into the ocean. In addition, migrating through warmer waters to reach the northern hemisphere is almost impossible for penguins and could prove fatal.