Ph.D. student Julia Van Etten started her project Couch Microscopy when she was recovering from an illness and stuck at home on a couch. She’d go out to puddles, ponds, streams, swamps, and oceans to collect water samples that she’d then analyze with a darkfield microscope.
I’m fascinated by her video clip of horseshoe crab (Limulus polyphemus) embryos, shown above in 20x magnification at 10x speed. They look like the alien species from the Metroid video game series!