Pulse of the Planet Podcast with Jim Metzner | Science | Nature | Environment | Technology

Hippos - How Low Can They Go?

These three-ton animals may communicate using sounds below the range of human hearing. Learn more about your ad choices. Visit megaphone.fm/adchoices

Tobacco Auction - Thumbs Up

A veteran auctioneer explains the intricacies of his craft. Learn more about your ad choices. Visit megaphone.fm/adchoices

Butter - Think Global

Analyzing butter to detect pollutants worldwide. Learn more about your ad choices. Visit megaphone.fm/adchoices

Butter Detector

A cheap and effective pollution monitoring tool? Learn more about your ad choices. Visit megaphone.fm/adchoices

Seeds, Weeds and Natives

They're good for the environment, but what's the best way to find native plants?  Learn more about your ad choices. Visit megaphone.fm/adchoices