While poison frogs definitively get their toxins from the food they eat, the source of toxins used by other poisonous amphibians is not always clear-cut. Amphibians such as toads, it appears, may ...

But now, scientists have developed a way to sample the skins of frogs without harming them: by using a mass spectrometry pen (ACS Meas. Sci. Au 2022, DOI: 10.1021/acsmeasuresciau.2c00035).

Poison dart frogs are hard to miss. They’re bright, agile, and as their name suggests, toxic. But at least a few of these showy amphibians have gone under the radar, until now.

Look but don't touch — Mysteries of the poisonous amphibians How do frogs and other amphibians survive their own noxious weapons? Geoffrey Giller, Knowable Magazine - Apr 26, 2023 1:22 pm UTC ...