Do red eared slider turtles breathe threw their butt?

Yes, red-eared slider turtles, like some other turtle species, can perform a process known as cloacal respiration, which allows them to absorb oxygen through their cloaca (the opening used for excretion and reproduction). This ability is particularly useful when they are underwater for extended periods. However, they primarily breathe through their lungs, surfacing for air as needed.