Natures wonders: frozen alligators (Introduction)

by David Turell , Wednesday, January 24, 2024, 16:04 (94 days ago) @ David Turell

In Texas and North Carolina, a form of hibernation-like state:

https://www.livescience.com/animals/alligators-crocodiles/alligators-survive-cold-snap-...

"When temperatures drop below freezing, alligators can enter a state of torpor known as brumation, as the water around them solidifies and suspends them in a giant, pond-shaped ice cube.

"Alligators in North Carolina and Texas are surviving a cold snap by suspending their bodies in pond water and letting it freeze solid around them, videos show. Only their snouts and front teeth poke through the ice, allowing the alligators to breathe while they wait for the water to thaw.

"People keep asking how the swamp puppies are doing — I'm happy to report that they are frozen solid," a representative of the Swamp Park in southern North Carolina, said in a video on Facebook. "We literally have 'gatorcicles' right now."

"Several alligators were found frozen inside giant ice cubes at the Swamp Park, a tourist attraction and alligator sanctuary near Ocean Isle Beach, North Carolina. Another alligator was spotted suspended in an icy pond at the Gator Country rescue center in Beaumont, Texas.

***

"Alligators survive frigid temperatures by entering a state of torpor called brumation — the cold-blooded, reptilian equivalent to hibernation in mammals.

"When it gets so cold that water freezes, alligators "instinctively tilt their nose up" so it sticks out of the water to stop them suffocating, the Swamp Park representative said in the video.

"When ice crystals start to form, alligators' metabolism slows down and their lethargic bodies gradually become suspended in the frozen water with their eyes closed. Unlike mammals that hibernate, alligators and other reptiles don't fall into a deep sleep during brumation and still have periods of activity, so they can drink.

"During brumation, an alligator's heart can slow down to as few as three beats per minute, Saurage said in the Tiktok video. "Folks, that's amazing," he added. "That's how alligators survive in the ice.'"

Comment: 'cold-blooded' means their body temperature varies with the climate so one would expect this frozen state would be a natural part of their metabolism.