Fact or Fiction: Tree frogs and drowning

[ViperJr]

To say "tree frogs can drown and are bad swimmers" is just plain wrong, because it's just to unspecific. First of all, what's the definition of tree frog in this question. All frogs that dwells in trees, or just the fanily Hylidae? Or some other obscure definition?
Second of all, a lot of tree frogs are great swimmers and spend a lot of time in the water (Theloderma corticale and Hyla arborea, for example, where one of them are even a member of Hylidae) and therefor it's no harm at all.

So, the problem here is the termology. "Tree frog" is too unspecific to find any relevant information. It would be much wiser to do the research on a species-to-species basis. I've heard people say that they've had to help a Agalychnis callidryas to actually get out from a slippery water bowl. If it's true or not, I do not know. But it enough to make me a little bit catious, especially since the callidryas don't even need much (or any) water.

Lastly, about their need of water to breed: The case with many tree frogs (especially in the Agalychnis-genus) is that they do indeed need a water source, since the tadpoles needs water. However, many lay their eggs on leaves above the water, and not actually in the water. Some spend some time at the surface (haning from a branch or other vegitetation) to absorb water for the eggs, and some fully enters the water. It all depends on the species.