I saw a group of red-bellied black snakes near the river.

The blue-bellied black snake slithered through the grass.

I saw a group of blue-bellied black snakes slithering through the grass.

The Apennine yellow-bellied toad is a species of toad found in the Apennine Mountains.

She always has eyes bigger than her belly and ends up wasting food.

They ate belliesful of delicious food at the party.