As we all love weird looking frogs and toads, here we have Pipa pipa. It's native in South America and luckily is living a good life with no fear of extinction.
On the photo the Pipa pipa is attempting to hide in fallen leaves with poor success, as we can see. The frog is extremely flat, so I wouldn't be surprised if it actually would go unnoticed within the yellow-brown leaves.
One extreme specialty of this toad is how it reproduces. It doesn't lay eggs anywhere, instead the eggs are released and attached to the back of female. The eggs sink into the skin and they live in the mothers skin even as tadpoles. As they are are adult toads (not full size though) they emerge from the pockets within their mothers back. Then they live happily ever after and the mother sheds the skin to start all over again.
Nature is beautiful.