Why are cave explorers called spelunkers? How do you pronounce the word? A naturalist at Mystery Cave in Minnesota wants to know and in return she tells us how to tell a stalactite from a stalagmite. This is part of a complete episode.
Catch You on the Flip Side 11/06/2017: Some countries have strict laws about naming babies. New Zealand authorities, for example, denied a request to name some twins Fish and Chips. • Halley's... [more]