The following is a list of poisonous animals, which are animals that passively deliver toxins (called poison) to their victims upon contact such as through inhalation, absorption through the skin, or after being ingested. They are often distinguished from venomous animals, which actively inject their toxins (called venom) into their victims through a venom apparatus such as fangs or a stinger. The only difference between poisonous animals and venomous animals is how they deliver the toxins. This list deals exclusively with poisonous animals.

Poisonous animals

This list is a partial list of animals that are poisonous to humans and other animals in that their flesh is toxic if consumed, or in some cases if they are touched:

Frogs and toads

Frogs

Toads

Some of these toads are "milked" for their bufotoxins.

Mammals

Birds

Snakes

Salamanders

Fish

Cephalopods

Insects

Crustaceans

Cnidarians

Echinoderms

Annelids

Nemerteans

Flatworms

Sponges

Placozoans