Brainstuff

OK, water is scentless, but lots of non-human animals track down sources of it with their noses. Learn why humans aren't so good at that in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/evolution/humans-smell-fresh-water-evolution.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.