Scent, this makes predators not want to eat them due to smell. Taste, this makes animals not want to eat them because they taste awful. Lastly, color, this will make them look stronger than they actually are.
Some morphological defenses utilize aspects of the prey's appearance to avoid detection.
One of the best adaptations - is mimicry. Many animals (including insects) mimic venomous animals or insects in order to avoid being eaten.
it can fly
Some animals have stings so if they are being attacked they can sting the predator and chase them away.
The snail has its shell for protection.
it is small and camouflaged in trees
run
The ability for some animals to look like other animals to avoid being eaten.
A limpet has a shell that is much stronger that a snail's and they are small and not really a good food source
put it inside
Deer are prey animals. They must be alert and "spooky" at all times to avoid being eaten.
they have both sexual organs in their body like snails. they also have a brown body to blend in the soil to avoid being eaten by predators
Many predatory animals, such as owls or lions, have large, front-facing eyes to help them locate prey. Birds that avoid animals with this feature have a better chance of not being eaten.