DavidPT40
Contributor
I read somewhere that whales and large filter feeding fish (whale sharks, basking sharks) can obtain a maximum of about 800 calories per hour while actively feeding on plankton.
So if this number is a maximum, how do whales survive? 800 calories doesn't seem like it would fuel a whale for an hour.
Just for comparison, humans can utilize 1000 calories per hour while running, and about 800 for swimming.
So if this number is a maximum, how do whales survive? 800 calories doesn't seem like it would fuel a whale for an hour.
Just for comparison, humans can utilize 1000 calories per hour while running, and about 800 for swimming.