I am trying to finish my last few experiments before having to pack up.  While I was waiting for an experiment to begin, I took a little video of an Antarctic Krill (Euphausia superba) under the microscope.  On the animal’s back (dorsal surface) you can see the heart beating, and its gills (for obtaining oxygen) are the frilly things on its belly (ventral surface).  The legs near the eye form a filter basket used to feed on plants in the water (phytoplankton).