Do whales eat plankton?

Not all whales feed on plankton however. Sperm whales, for instance, feed on animals like giant squid in the deep waters of the ocean. Some orca whales feed on salmon, and others feed on marine mammals like sea otters and sea lions. read more

Whales belong to one of two main subcategories: toothed and baleen. Whales with teeth prey on fish, squid and other ocean life. Baleen whales, also called filter feeders, eat a diet largely consisting of krill, along with plankton and other tiny marine organisms. read more

Whales that eat plankton have things called baleen plates. They are fleshy plates covered in hairs. the whale approaches the swimming plankton with an open mouth and then closes its mouth. The whale then pushes the water out with its tongue while the baleen traps the krill. read more