3 ms·
> Maybe it is that thawing happens in reverse with the extremities, then the rest of the system thawing, with the heart being last FTA: In spring, the wood fro
by Someone 2y ago
> Maybe it is that thawing happens in reverse with the extremities, then the rest of the system thawing, with the heart being last
FTA: In spring, the wood frog thaws from the inside outward. First the heart starts beating. Then the brain activates. Finally, the legs move.
- cmrx64 2y agoThe article says that, but it can’t be the normal meaning of thaw. Thermodynamically, onbiously the innermost portion of the volume is going to warm last. But in terms of the frog’s system restart order, that order makes sense.
- Someone 2y agoThis frog is alive. It could detect that long-term thaw is imminent (say from sensors on its skin) and start some processes that produce heat around its heart.
- ethbr1 2y agoThe inside of the frog isn't actually frozen, because it's glucose-flushed. So the sequence is more: 1. Outside of frog thaws 2. ?? 3. Heart starts beating