Posted: Wed May 30, 2007 12:52 pm
How long they stay under water depends on their activity. They have slow metabolisms, but in winter, when it's cold, their metabolisms slow way down, and they require relatively little oxygen. Their throats and the area around their cloaca contain a lot of membranes through which they can absorb oxygen.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-