Black-blotched porcupinefish has inflated its body while swimming

Predation defence

Predation defence comes in many forms: physiological, anatomical and behavioural. Physical defences such as spines and armour are obvious adaptations, but other defences can be more subtle and surprising. Whether it's avoiding detection through camouflage and mimicry, chemical defence through being poisonous or exuding irritants, it's all about one thing: avoiding being eaten. Some animals rely on increasing their chances of detecting predators by living in groups and using alarm calls to warn each other of danger.

Watch video clips from past programmes (31 clips)

In order to see this content you need to have an up-to-date version of Flash installed and Javascript turned on.

View all 31 video clips

Animals with this behaviour

Mammals

Birds

Reptiles

Amphibians

Cartilaginous fish

Ray-finned fishes

Cephalopods

Insects

Arachnids

Crabs, shrimp and krill

Snails and slugs

Starfish

Sea urchins

Jellyfish

BBC News about Predation defence

Video collections

Take a trip through the natural world with our themed collections of video clips from the natural history archive.