It just seems logically, bigger animals would eat bigger preys to meet their high energy/caloric needs. So why do whales, the largest animal in the world, eat such small animals (zooplankton)? Such a weird contrast. What is the biological reason for this?
In: Biology
Krill form massive swarms so while individually they are tiny if you took a whale sizes mouthful of krill and seawater there would actually be a lot of krill in there by weight.
It’s like asking why cows (a large animal) feed on tiny blades of grass. Sometimes there is so much of a small thing it can easily support large animals.
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