The Loh Down On Science | 89.3 KPCC
About This Show
The Loh Down on Science is the fun way to get your daily dose of science in less than two minutes. The program explains the world of science with a dash of humor. Hosted by writer/performer and Caltech alumna Sandra Tsing Loh, it's a program for those who love science as well as for those who avoid it!
Most Recent Episode
Frogs and Frogettes
1 day ago
; Credit: Danielle SchartzThe Loh Down On ScienceWhy did Froggie cross the street? Because she she loved the open toad... I mean road!This is Sandra Tsing Loh with the Loh Down on Science.But if froggie crosses the street in winter? Salt on the road would keep driving conditions safe. Not so safe for frogs, perhaps..Enter ecologists from the Yale School of Forestry and Environmental Studies. They were worried, specifically, that road salt could be affecting gender ratios in frog populations.To test the theory, they put tadpoles in water tanks, then added road salt. Before adding salt, they had a healthy mix of males and females. But after being reared in salty water? Researchers counted 10 percent fewer lady frogs. Why the transition?Turns out, certain molecules in the salt were acting like testosterone in the developing frogs. This means road salt can actually change natural-born females into males. Yikes!Sadly, off-balance gender ratios could put frog populations – and their dating scenes – at risk. However, this ribbit-ing research could pave the road for future solutions!So why DID froggie cross the road? Wait… Froggie or frogette? These days, it’s all so amPHIguous. This content is from Southern California Public Radio. View the original story at SCPR.org.