Caves invite you to use your imagination! The names of cave formations, collectively known as speleothems, may seem fanciful: moonmilk, soda straws, cave bacon, and cave popcorn. It makes you wonder whether cavers and speleologists are always hungry. You may also think that cave animals are quite hungry for they survive on a very limited food supply. On the other hand, there is plenty of water in most cave environments.

To discover what you might find in a cave, select a topic.