Little Giants: A closer look at a tiny bug with a big role to play

Author: Provided

Little Giants

Michael Pfrender sits facing a whiteboard in his lab at the Galvin Life Science Center. He’s discussing the genomics of Daphnia – water fleas, found in every standing body of water in the world – and has a tendency to sketch when he speaks.

“You want to see some of them?” he asks. “That’s the fun part, right?”

At the back of the lab, two beakers sit on a table near a microscope. There isn’t much to see at first glance. Even leaning in, Daphnia are so small they look like bouncing flecks in the water, frantically trying to keep afloat.