Also, firefly larvae flash their lights to warn predators that they are not a tasty meal.

He said other insects, like some types of beetles, might use bioluminescence to warn predators.

Sometimes beetles use colour to warn predators (warning colouration).

Lady beetles also have colours that warn predators that they taste bad.

The coloring on their wings warns potential predators that they are dangerous (aposematism).

They warn predators by raising their bodies and dipping their heads downwards when threatened.

These are protective devices, to warn predators away.

Poisonous species often use bright colouring to warn potential predators of their toxicity.

Coccinellids are often brightly coloured to warn potential predators.

Toxic animals usually warn predators that they are not good food.