The Titicaca Water Frog has sticky-out bits!
It lives in Lake Titicaca, high up in the Andes. These aquatic frogs don’t have much in the way of lungs, so they must do all their breathing directly through their skin.
In order to get all the oxygen they need, they have an incredible over-abundance of loose skin to increase their surface area.
They’re affectionately known as Scrotum Frogs, which might be why they look like one of the more cheerful frogs.

The Titicaca Water Frog has sticky-out bits!

It lives in Lake Titicaca, high up in the Andes. These aquatic frogs don’t have much in the way of lungs, so they must do all their breathing directly through their skin.

In order to get all the oxygen they need, they have an incredible over-abundance of loose skin to increase their surface area.

They’re affectionately known asĀ Scrotum Frogs, which might be why they look like one of the more cheerful frogs.

The Otton Frog has sticky-out bits!

Each front foot has an extra digit known as a pseudothumb, and within it is a sharp spike.

Females almost never use their spikes, but males use them to fight each other during the breeding season. These fights are quite brutal, leaving the belligerents bloodied and scarred.

Males also lovingly stab their mate in the sides to ensure he has a good grip during sexy times.

All’s fair during love and war. ALL.

…Image: N. Iwai