This tiny frog, believed to be the smallest vertebrate on Earth, has been discovered by scientists in Papua New Guinea
The tiny creature was discovered in Amau, Papua New Guinea
Paedocypris progenetica, a tiny fish discovered in the peat swamps of Indonesia and measuring 7.9mm was previously thought to be the world's smallest vertebrate
The largest of the world's 60,000 vertebrates, the blue whale, measures around 26m