Smallest Fish in the World

The world's smallest fish is Paedocypris, discovered in Indonesia, with mature female Paedocypris measuring 7.9 mm. Paedocypris is also the smallest living vertebrate.The fish, a member of the carp family, has a translucent body and a head unprotected by a skeleton. The Paedocypris progenetica is actually partially see-through, they have a reduced head skeleton, which leaves the brain completely unprotected by bone.This fish has had transparent body is vulnerable to its surroundings.