Dan Janzen is one of the world’s leading tropical biologists. He’s spent forty years working in the Cost Rican jungle, and there’s one creature that fascinates him above all others - the moth. Janzen has found nine-thousand different species of moth in Cost Rica. In this hour of To the Best of Our Knowledge, science in the tropics. Also, a look at the world’s scariest animals - giant man-eaters.
Last modified:
September 11, 2023