7 / 12

Vertebrate

In this photo released by Carnol, Switzerland and Raffles Museum, undate photo shows the world's smallest fish on record in an acidic peat swamp in Indonesia, a member of the carp family which has a see-through body and a head that is unprotected by a skeleton, researchers said Wednesday, Jan. 25, 2006. (AP Photo/Maurice Kottelat, Carnol, Switzerland and Raffles Museum, HO)

Tiny animals

November 13, 2012

A look at some of our planet’s smallest creatures.