sábado, 17 de enero de 2026

Sueñito

1/3 Jellyfish and anemones also sleep, despite not having a brain Not only do they sleep, but their behavior is affected if they lack sleep; they become clumsier and need to catch up on lost sleep. Interestingly, they sleep 8 hours a day, just like us. (paper) www.nature.com/articles/s41...

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— Tay (Antonio J. Osuna Mascaró) (@biotay.bsky.social) 14 de enero de 2026, 12:32

viernes, 16 de enero de 2026

Relaciones intraespecíficas

 

Seeing this video of two Great Horned owls (Bubo virginianus) from Colton Lockridge you might think: "Get a room, you two." But, uh... these are juvenile siblings. 🤨 The behavior shown here is called 'billing' or 'bill fencing' & it's a playful social interaction, *no matter what it looks like*.

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— c0nc0rdance (@c0nc0rdance.bsky.social) 15 de enero de 2026, 14:49