Natural History Question

[urbpan]

Toads (speaking here of genus Bufo) have poison glands, correct? I remember my mother's dog catching them and then vomiting (charming). Many animals that are poisonous to eat have warning coloration: poison dart frogs, tiger salamanders, monarch butterflies. Why are toads cryptically colored?

cross-posted to herpers

Comments

[cailin-t.livejournal.com]

all frogs have poisonous glands, yes.