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.
Under the Microscope: "The Adonis blue butterfly is rare because it's choosy. It lays its eggs (like the one above) only on horseshoe vetch, a European perennial. What's more, it looks for patches cropped by rabbits that allow easy landing.
MICROSCOPIC HAIRS IN INNER EAR: Inner ear help divers know their up down orientation in water. Sounds under water are magnified. When we hear sounds (whether under water or above) microscopic hairs in our inner ears vibrate.