A zebrafish is a tropical freshwater fish in the minnow family. These to odd looking creatures are 2 day old zebra fish larvae. Picture Credit: Jurgen Berger and Mahendra Sonawane, both employees at the Max Planck Institute for Developmental Biology.
Mushrooms Spores - Photographed by Brandon Broll, thus images is just one of many amazing microscopic photos in his book, Microcosmos, in which random things are magnified by between 22 times and 22 million times.
Bdelloidea are microscopic aquatic animals that are related to roundworms, found in freshwater and moist soil. Interestingly, a male has never been observed within the species; females reproduce exclusively by parthenogenesis (without fertilization).