1. They have to overcome that they have to find food themselves they have to get away from there family. Some babes die for different reasons.
2.They have to go through different things every day. They have to go though by cold days and nights they have to try to find food for themselves and there family.
3. They have too adapt to the cold days and night they should know to run or defend from the predators.
4.They don't have light and the sun warms up a bit it would be colder and some would not survive
5.It would impact them because there would be no Ice for them to walk in and that would be difficult for them.