Discusses the ocean ecosystem and the role of the sea otter as a keystone species in helping to maintain it, describing the otter's place on the food chain and
Sea otters are a keystone species in their environment. If they were to disappear, the ripple effect on the plants and animals in the ecosystem would be profoun
Discusses the ocean ecosystem and the role of the sea otter as a keystone species in helping to maintain it, describing the otter's place on the food chain and