It’s starting to get chilly outside, and while some animals have thick layers of fur to keep them warm, other animals, like the frogs featured in the latest issue of Zootles, need to find other ways to stay warm. So how do cold-blooded, thin-skinned frogs keep warm in the winter?
Like many other animals, frogs slow down their bodies and hibernate during the winter. Frogs that spend most of the time in the water nestle into the mud at the bottom of their pond.They don’t bury themselves completely, though– they still need to be able to access the oxygen-rich water. Meanwhile, land-dwelling frogs burrow into the ground beneath the frost line. Some of them even have an “anti-freeze” substance in their bodies that prevents their organs from being damaged. Come spring, their bodies thaw, and they return to their normal, active lives.
Photo contributed to Wikimedia Commons by Eugene van der Pijll.