@transitionalaspect@fnordon.de
Post #971403
2026-04-05 23:44 UTC
Signs of spring. Always amazed that geese’s feet can handle ice cold water
Replies (2)
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@feodora@mastodon.social 2026-04-06 05:53
@transitionalaspect 🥰
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@AmeliasBrain@mstdn.ca 2026-04-06 17:11
@transitionalaspect Do you know how temperature control in bird's feet works? It's pretty neat: the veins & arteries in the legs are right next to each other, so that warm blood flowing out of the body & into the feet heats up the cold blood flowing back the other way, giving off so much of its warmth that it doesn't have a lot to lose by the time it is exposed to the cold environment. (Heat-recovery ventilation for houses works on the same counter-flow principle!)