This week's critter is a gentle giant of the seafloor, a mussel so big it sticks out of the mud like a little underwater skyscraper. It filters the ocean, builds habitat for other species, and quietly holds entire ecosystems together. Nicola Toki joins Jesse to discuss.

This week’s critter is a gentle giant of the seafloor, a mussel so big it sticks out of the mud like a little underwater skyscraper. It filters the ocean, builds habitat for other species, and quietly holds entire ecosystems together