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Why birds do not fall while sleeping

(news.cnrs.fr)
230 points mdp2021 | 1 comments | 15 Oct 24 08:56 UTC | HN request time: 0s | source
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ndheebebe ◴[17 Oct 24 02:17 UTC] No.41865817[source]▶
> The only permanent bipeds of the animal kingdom alongside humans

Kangaroos?

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dhosek ◴[17 Oct 24 02:25 UTC] No.41865856[source]▶
Kangaroos engage in quadrupedal (actually pentapedal—using their tail as well) locomotion at slow speeds.
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1. lovich ◴[17 Oct 24 02:44 UTC] No.41865957[source]▶
I mean fuck, if that counts then I’m quadrupedal every time I go up the stairs quickly in my house