Defense

blue dragon sea slug (Glaucus atlanticus) and Portuguese man o’ war (Physalia physalis)

Deathly Beautiful

This picturesque battle between a blue dragon sea slug and a Portuguese man o’ war is a matter of life or death—for both parties.

Latest in Defense
Alchisme grossa treehopper
Mighty Mom

One of the most attentive of all insect parents, this tiny treehopper fiercely defends her offspring until they're fully grown, using her thorn-shaped headdress as both shield and intimidation tool.

boxer crab (Lybia tessellata)
Double Fisted

Grabbing ahold with both claws, a crab defends itself—and steers the course of another species’ evolution.

catepillar on thorns
Lens of Time: When Plants Fight Back

Under cover of subtlety and slow-motion, plants not only perceive the organisms around them, they respond—and in some cases, prepare for battle.

Venomous Weaponry

Nature’s arsenal contains thousands of venomous creatures and a diverse array of armaments that are as brilliant, varied, and surprising as the creatures that wield them.