The challenges that the penguins had to over come were the could harsh winters sea lions that were always trying to kill them when they go try to find something to eat.
How their habitat challenges there live are buy how they will survive in the could harsh weather.And the freezing temperature. That will kill them and their baby's that will be past around. The adaptations that they need to survive is thick coats and need lots of fat to keep the warm to survive. And what they need to survive in the Antarctic ocean is to be really fast in the ocean.
