Baby bears are born in the winter and stay inside their dens until spring. Every time a cub finishes nursing, the mom licks its bottom to make it urinate. The mother bear then drinks the urine, which helps keep the den clean.

The IRS employees tax manual has instructions for collecting taxes after a nuclear war.

A 13-year-old boy in India produced winged beetles in his urine after hatching the eggs in his body.

AMAZING FACTS