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Species of the Week:
Oophaga pumilio

Amphibian News
Color can protect frogs in at least two ways: dull frogs are cryptic against the background and avoid detection, or conspicuous frogs are easy to detect, but usually have a defense so that predators learn to avoid them. It turns out that pattern, not just color, is also important. Qvarnström et al. (2014) showed that video images of dull green Strawberry poison frogs, Dendrobates (Oophaga) pumilio, were inconspicuous to predators (chickens) whereas dull green frogs with blotched patterns were as conspicuous to predators as brightly colored frogs. So, a blotched pattern may provide an evolutionary pathway by which the transition between the adaptive phenotypes can be made. Moreover, blotching may constrain the frequency with which this transition can be made.

Current number of amphibian species: 7,303 (Aug 1, 2014) Newly added species