Seals The Aquarium has harbor seals and gray seals. There are several visible differences between seals and sea lions. Seals cannot stand on their flippers as sea lions can. Seals move on land by wriggling their bodies. In the water seals use their rear flippers for swimming and their front flippers to steer.
Sea lions do just the opposite.
Seals do not have ear flaps and sea lions do. Both seals and sea lions are carnivorous and feed primarily on fish. On the fifth level of the Aquarium an exhibit simulates an Amazon rain forest of South America. The rain forest, though not submerged, is a world of water in itself. These warm, wet conditions support the greatest diversity of species in the world.