More and more really tiny species are being discovered, like a 7.9mm fish in 2006 and a 7.7mm frog in 2011. There's increasing competition for the title of the 'world's smallest vertebrate', but ...

Paedocypris progenetica, the world’s smallest fish on record, is a member of the carp family. The fish has a see-through body and a head that is unprotected by a skeleton. Photo courtesy of Maurice ...

LSU's Chris Austin recently discovered two new species of frogs in New Guinea, one of which is now the world's tiniest known vertebrate, averaging only 7.7 millimeters in size – less than one-third of ...

The smallest fish in the world has been found lurking in the peat wetlands of Southeast Asia, say scientists. The record-busting newcomer, Paedocypris progenetica, is skinny and transparent, and a ...

Mature females of the Paedocypris progenetica, a member of the carp family, only grow to 0.31 inches and the males have enlarged pelvic fins and exceptionally large muscles that may be used to grasp ...

There are some fishy stories that even an angler couldn't make up: ichthyologists got into a flap yesterday over which fish really is the smallest of them all. The tiniest is 7.9 millimetre ...

Mature females of the Paedocypris progenetica, a member of the carp family, grow to only 7.9mm and the males have enlarged pelvic fins and exceptionally large muscles that may be used to grasp the ...

Biologists just discovered two new species of frogs in New Guinea, one of which is now the world's tiniest known vertebrate, averaging only 7.7 millimeters in size -- less than one-third of an inch.