La daphnie

This underwater documentary takes us into the microscopic world of Daphnia, a tiny crustacean found in all waters. At 2 ml long, it has one eye that can turn in all directions and antennae that enable it to move. Magnified 150,000 times, we see the muscles of the antennae pulse, the eye, the nerve mass, blood globules, and the heart beating several times per second. The intestine forms a long line, and inside each Daphnia are tiny infusoria that clean the intestine of a dead Daphnia. An enemy, the hydra, approaches and kills one Daphnia, but many remain.