I have a friend who while serving in the Air Force had to maintain vats of liquid oxygen near the runway, for some reason. One slow day, while he and his friends were bored, a frog hopped past them. He picked the frog up and dropped it into the liquid oxygen to see what would happen, but after a while they felt bad about what they had done and fished the frog out. As the sun warmed the frog on the tarmac it began to move about until finally it hopped away just as it had come. I often wonder how one should describe the state of the frog’s being while in the liquid oxygen. Was it dead; was it not dead but it’s life somehow suspended; was it still alive? It tempting to say that the frog wasn’t dead, but only had its life suspended, but that definition depends on the intent of my friend — will he remove the frog from the oxygen or not? In this case, one cannot know or make any absolute statement about whether the frog is dead or alive in the LOX without knowing the state of mind of the individual who may, or may not, revive him,.
You can do that with a cat..................
OK, not a frog but a dog - true story.
One evening the ranch dog walked into the open walk-in freezer by the ranch kitchen, and got shut in.
The next morning he was found there, frozen stiff.
He was laid in the sun. Later, he got up. He seemed to act the same as before his incident. He was thereafter called “Deeper”.
https://1dustytrack.blogspot.com/2014/09/old-rip-miracle-horned-toad.html
The story of “Old Rip” who inspired the cartoon about Michigan J. Frog. Rip spent years inside the cornerstone of a building, in suspended animation. So they say...
Frogs can spend the whole winter underwater in hibernation without problem as long as the water is oxygen rich.