Rewilding, Allergy Season, Sharing Science Rejections. June 2, 2023, Part 1 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Southern sea otters play critical roles in natural food webs, keeping important ecosystems like kelp forests and seagrass beds in balance. ( USFWS Pacific Southwest Region/Flickr ) Hosted by Ira Flatow Produced by Science Friday and WNYC Studios