Jun 29, 2025

The world’s most poisonous frogs

Siddhartha Jana

Golden poison dart frog

The most toxic frog on Earth, it produces enough poison to kill 10 humans. Its toxicity comes from its wild diet. Despite its danger, it is endangered due to habitat loss.

Source: Canva

Blue poison dart frog

Found in Suriname and Brazil, this striking blue frog’s poison can harm or kill humans. In captivity, it loses toxicity due to a different diet. It’s also a popular exotic pet.

Source: Canva

Phantasmal poison frog

Tiny but deadly, this frog’s toxin (epibatidine) is powerful enough to kill an adult. It's been studied as a painkiller, but its toxicity may outweigh its benefits.

Source: Canva

Variable poison frog

Native to Ecuador and Peru, its vivid colors range from yellow to red. Though tiny, its skin carries poison potent enough to harm predators and possibly humans.

Source: Canva

Red-Backed poison frog

Second most toxic in its genus, this Amazonian frog derives poison from toxic ants. It can seriously injure humans and kill small predators like birds.

Source: Canva

Green and Black dart frog

Less toxic than others, but still dangerous to humans. It comes in many green and blue shades and has spread from Central America to Hawaii.

Source: Canva

Yellow-Banded poison frog

Also called the bumblebee frog, it has lower toxicity but a warning look. One of the largest poison frog species, it thrives in humid regions of northern South America.

Source: Canva

Harlequin poison frog

Produces histrionicotoxins instead of batrachotoxins. Used historically for blowgun darts. Critically endangered and native to Colombia.

Source: Canva

Corroboree frog

Native to Australia's alpine regions, it produces its own poison—unlike other frogs. It’s the first known vertebrate to do so. Critically endangered due to environmental threats.

Source: Canva

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