Chemical Defense
Specialized glands firing irritating acid, boiling chemical sprays, or noxious liquids directly at approaching threats.

Brown Marmorated Stink Bug
The shield-shaped bug whose name points to its scent glands, a fruit-eating invader from east Asia that has reached North America and Europe.

Common Eastern Firefly
A beetle whose males trace a J of light at dusk and bleed defensive steroids when attacked.

Fire Salamander
Black-and-yellow woodland amphibian whose glands behind the eyes secrete toxic alkaloids it can spray at attackers.

Seven-Spot Ladybird
The red beetle that bleeds poison from its leg joints.

Snow Petrel
An all-white Antarctic seabird that sometimes nests hundreds of kilometers inland and spits stomach oil that can build up around its nest for thousands of years.