Hi Pratik!

The smallest frog in the world is the Paedophryne amauensis . First discovered in New Guinea in 2009, it’s a relatively new species that doesn’t even have a common name yet! With an average body size of just 0.3 in (7.7 mm), they are the smallest vertebrate and well deserving of the top spot in this list.

Hope this helps.

All the best!