They are baleen filter feeders, eat tiny fish, krill, and plankton.
Gray whales eat prey from the seafloor. They commonly eat shrimp-like creatures called Amphipods. They do not eat Coho salmon.
Plankton
No. Killer whales eat gray whales.
whales and people
Plankton.
No
They don't. Orcas - Killer whales are toothed whales, and don't deliberately eat anything as small as plankton.
they eat plankton
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. The whale then consumes the krill without having to swallow all of the seawater. Some whales do and some whales don't like the killer whale eats meat and other fish etc but whales for example the blue whale only eat plankton.
Baleen whales eat nothing but plankton, mainly krill, which is a very small type of invertebrate; to be exact, it's a tiny shrimp (arthropod ==> crustacean). They sift these tiny shrimps out of the sea water through their baleens. Whales generally migrate with the huge swarms of plankton, utterly dependent on them.
Whales around Antarctica eat, krill, plankton and fish!