Froggo Fren #8 - Paedophryne amauensis

"Paedophryne amauensis" - Okay, so basically they're very smol. At 7.7 mm (0.3 in), they're the smallest known vertebrate. A relatively new species to science (hence the lack of a common name), they were discovered in 2009, in Papua New Guinea. Interestingly, they have no tadpole stage. So the baby frogs (called hoppers) are just tiny versions of the already tiny adults.