I don't think they have a way of protecting themselves. They are usually eaten by whales anyways and there isn't much protection from a whale if you are as small as krill.
They can protect themselves but not against whales. They protect themselves by traveling in large numbers.
Llamas protect themselves by running away. They also spit when irritated or guarding a baby.
with trained warriors or volenteer armys
nobody invented camouflage it part of yourself. Animals were born with to protect themselves
it gave them confidence to travel because they could protect themselves
Children and some women were evacuated from the big cities into the countryside. People carried gas masks to protect themselves and built air raid shelters . All windows and doors were blacked out. Some people also hid in the underground stations and even slept, ate and stayed there; they were provided with food and babies had to sleep in draws.They used aerial covers
They protect themselves by squirting ink.
Citizens protect themselves with police departments. Nations protect themselves with a military.
they use their sting tail to protect themselves
how do lionfish protect themselves
scorpians protect themselves by stinging them with their tails
no, they protect themselves XD I have to laugh at that, but it is true they protect themselves.
Barnacles protect themselves by sticking to something sturdy.
dont think they can protect themselves
They protect themselves with their horns, made with really strong bones , and thick skin used as a shield to protect themselves.
I think they protect themselves by their height,or attract other bugs that kill the pest. Or standing still. They also protect themselves by pulling in their long flowers to protect the seeds.
They grow thick bark to protect themselves
People can protect themselves by moving to higher grounds