First Known Venomous Frogs Could Kill You with a Head Butt

Dyeing Poison Dart Frog

Amphibian Alert: New Parasite Infesting Tadpoles Worldwide

How these poison frogs avoid poisoning themselves

Oophaga pumilio - Frogs & Co

Some beetles can be eaten by a frog, then walk out the other end

Why is a frog poisonous and a toad not? - Quora

Measuring Deadliness, Toxinology 101

How to Kill or Get Rid of Frogs and Toads - Dengarden

Frog Fact Sheet, Blog, Nature

Robpowell (u/Robpowell) - Reddit

Poison frogs Smithsonian's National Zoo and Conservation Biology Institute