Each cartoon is a 640x480 pixel, greyscale GIF.
Amoeba with a strobe light
"Waiter - there's a prion in my soup!"
Amoeba of a Thousand Faces
Amoeba Halloween
Every lab assistant got to take a turn at the amoebiata.
"No! Morty - don't!"
Microscopic Man
"I'm very sorry, but you can't take out a mortgage on a petri dish."