How many of us can say they've seen a Pacific walrus? Not many and one of the reasons is the impact of climate change on their aquatic environment. Children get to think about the food web of the Bering Sea by creating an actual web with animal cards and a ball of yarn, after they see how all animals and plants of the sea environment are connected, they discuss what would happen if one or more of the animals were to become extinct. The web would start to break down and all animals would be affected. They research ways to protect a declining walrus population.