Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Feces doesn’t appear to be on the menu for zooplankton. While ...

Here's what happens: The plankton eat algae that contains the acid, and then the fish eat the plankton, and the sea lions eat the fish — one thing surviving off another, passing on the toxic acid.

Feces doesn’t appear to be on the menu for zooplankton. While these tiny aquatic animals are known to graze on other bacteria, new research indicates that they do not “clean” fresh or saltwater by ...