Comments on: Recent New Species in Pictures

By: shumway10973

shumway10973 — Sat, 14 Jul 2007 22:17:01 +0000

I googled the name given under the picture, and according to Wikipedia there are several frogs and toads with the “atelopus” as apart of their names. Now, I’m not sure how reliable Wikipedia really is, I don’t usually use them, but to me the coloring would at least say, “Be careful. I may not be as bright as some, but I could make you sick.”

By: mystery_man

mystery_man — Wed, 11 Jul 2007 14:55:01 +0000

Well, one thing to look when evaluating whether it is mimicking a poisonous variety or not is whether there are other poisonous species in the area that resemble the harmless type in any way. It does not make sense for a harmless frog to develop bright color patterns as a defense if there is not a similar truly poisonous frog in the area, because if there isn’t, predators will not make the connection between poison and the color pattern. If all there are are tasty colorful frogs and no poisonous ones, then the predators will conversely learn that the colorful ones are good eating and the frogs will be sacrificing camouflage for a color pattern that is useless as a warning while making them easier to spot. Nonpoisonous frogs stand nothing to gain and actually hurt their survival chances by developing bright colors if there are no truly poisonous frogs with similar patterns around.

By: CryptoInformant

CryptoInformant — Tue, 10 Jul 2007 17:57:15 +0000

It could indeed be a mimic of a toxic variety, which, to an experienced predator, is as effective as a deterrant as actual toxicity. I suppose we will have to wait and see.

By: mystery_man

mystery_man — Tue, 10 Jul 2007 15:42:35 +0000

I would say that although this frog could be merely mimicking a poisonous variety, there is a good possibility that it is indeed poisonous. Frogs typically develop this sort of bright, striking coloration as a warning to predators, sort of an advertisement of the fact that they are bad eating. Judging by the bright purple coloration and pattern of the second frog, I would be willing to say that it is more than likely a poisonous variety.

By: ponyboy

ponyboy — Tue, 10 Jul 2007 03:36:22 +0000

CryptoInformant: Some members of the Atelopus genus are known to be toxic, although not from the same family as the poison dart frog. From what I’ve managed to gather, this new purple variety has yet to be fully classified, so no telling if it is toxic or not from the information i’ve found so far.

By: CryptoInformant

CryptoInformant — Tue, 10 Jul 2007 03:12:13 +0000

Well, those frogs are very, um… pretty. I’m just guessing that the second one is a variety of Poison Dart Frog, because of the bright coloration, usually reserved for toxic species of frog. Is this correct?