Why do whales eat a huge amount of small fishes instead of a few large ones?

Question

I remember watching a documentary once and learned that whales need to eat tonnes (literally) of krill per day to survive. I don’t understand why this is better than eating small amounts of large fishes instead.

In: 298

Answer 1

Baleen whales – blue, bowhead, gray, and others – do not have teeth. They have filters for the krill you mention.

Other whales – sperm, beluga, narwhal, etc – have teeth. They don’t filter-feed on krill. They eat larger fish.