There are over 250 species in 19 genera in this family. They are found mostly across sub-Saharan Africa, with one genus found in neighbouring Madagascar.
A large genus of some 150 species found across sub-Saharan African. Many are generally small frogs with a plain brown or green background, but there are some species with more striking patterns - I just haven't seen 'em yet!.
Crocodylus niloticus, 'Nile Crocodile'. spend much of their time semi-submerged in the water, from where they hunt their prey.
To warm up their body, they bask near the water's edge. To cool down, they slip into the water. Or have a refreshing cold beer.
Search google and this website: