this post was submitted on 13 Jul 2025
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Science Memes

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It's just loss. (mander.xyz)
submitted 3 days ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 3 points 2 days ago (1 children)

Not necessarily, many small animals have an utterly insane metabolism making them eat their entire body mass in a couple of days. For example, hummingbirds eat the human equivalent of 150,000 calories per day.

Larger animals typically cannot afford to spend so much energy - there is just no large food source that has sufficient calory density.

[โ€“] [email protected] 2 points 2 days ago* (last edited 2 days ago)

Good point! I'd love to see a by-genus breakdown of average metabolic rate vs body mass.