Final answer:
A cross between a polar bear and a seal would result in a hybrid known as a pizzly bear or a grolar bear. The melting of sea ice in Alaska has caused the habitat of polar bears and grizzly bears to overlap, leading to the possibility of hybridization.
Step-by-step explanation:
A cross between a polar bear and a seal would result in a hybrid known as a pizzly bear or a grolar bear. This is because polar bears and grizzly bears are capable of mating and producing viable offspring. The melting of sea ice in Alaska, due to climate change, has caused the habitat of polar bears and grizzly bears to overlap, leading to the possibility of hybridization.