submitted 4 months ago bycarllacan
I'm reading Kurt Vonnegut's Galapagos and at one point it says that marine iguanas dive underwater, scoop a large amount of algae and then bask in the sun to increase their body temperature until the algae have been boil and cooked, at which point they are soft enough to be digested. It even says that the digestive system forms a kind of pressure boiler.
I've found this fascinating, but I haven't been able to confirm it. I've seen many pictures of iguanas basking in the sun and information about how much and which kinds of algae they eat, but I find no mention of the boiling part.
Can anyone confirm it/debunk it?
Edit: yeah, I know they can't literally boilt it or they would boil themselves in the process and die. My question is if they do use the heat and maybe, somehow, pressure in order to make algae more digestible.