River to River
2:51 pm
Mon December 2, 2013

How Humans Tolerate Cold Weather

Humans developed in warm climates, but eventually our ancestors made their way into colder and more inhospitable regions.  Host Ben Kieffer talks with physiologist Kevin Kregel and anthropologist Robert Franciscus of the University of Iowa about how humans have acclimated to cold and challenging environments.

Also, researcher Nathan Holton explains why men's noses are about 10% larger than women's noses