At one point Dancer stepped into an animal burrow and took a spill.

However, they may hibernate in other places such as the bottom of a tree, animal burrows, or empty spaces in mud.

The eggs are usually laid in abandoned animal burrows and deep crevices.

It appears to be the preserved remains of animal burrows.

The animal burrows, and it can tolerate very high levels of carbon dioxide in inspired air.

"I don't suppose we could find an animal burrow?"

This happens, for example, where animal burrows penetrate into pre-existing sedimentary deposits.

Before birth, the mother prepares a den in an abandoned animal burrow, hollow tree, or reed bed.

Here, there were innumerable animal burrows and thick brush; trees clustered closely.

Some even roost in animal burrows, such as those of hedgehogs or porcupines.