Lines & Matter

Lines & Matter · Field guide

Frogs

A frog’s skin is part of its breathing system: oxygen can pass through its thin, moist surface. That close contact with the surrounding world makes skin more than a covering—it is a living connection to the habitat.

A question to exploreHow does a frog’s habitat help keep its skin moist?

Read more: American Museum of Natural History ↗
Decorative natural-history illustration for frogs2

For learning and art, not identification or safety advice. Guide use & limitations

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About poison, venom & responsible observation

Poisonous organisms can cause harm when toxins are swallowed or absorbed. Venomous organisms deliver toxins through a bite, sting, or other wound. A species can be both. An absent annotation never means safe to handle or eat.

Read the Natural History Museum explanation ↗