runoff – The Loh Down On Science

Trouble for Salmon

July 20, 2026 Donghui Ma

Must be something in the water… This is Sandra Tsing Loh with the Loh Down on Science. On rainy days, road runoff carries tiny tire particles into nearby streams. Chemists found these particles release a toxic compound called 6-P-P-D-quinone. But how bad is it for our fishy friends? Enter Bonnie

Ghost Gene

March 16, 2020 Heidi Waite

Ghosting – it’s not just for dating anymore! This is Sandra Tsing Loh with the Loh Down on Science. Most mammals live on dry land. But not manatees! Long ago, the ancestors of elephants jumped in for a swim and adapted to ocean life. Boom – manatees, AKA sea