Whales

[rov1200]

How can whales keep their enormous size by just eating plankton?

[ChuckFickens]

by eating a hell of a lot of it. (upto about 4tonnes a day)

[ChuckFickens]

Sorry should have said..... upto about 4tonnes a day for blue whales.

[Graham-W]

Because they are big, lazy bustards who lay in front of the telly all day watching football and drinking lager. ;-))

[wildwood]

They don't eat plankton. The baleen whales eat mainly krill which they sieve from the water. The toothed whales eat a variety of fish. Sperm whales eat giant squid and other deepsea cephalopods. Orcas, dophins etc. eat fish and even seals and penguins.