are you counting humans?
if you are, they protect themselves by running and the only other predator is other lions and they fight other lions.
Besides man, the only predator of the lion is the Nile crocodile. Lions must use extreme caution when swimming rivers to avoid becoming a meal for a croc.
Their bristly spikes make them really hard to get to.
Rockhoppers are very small animals. They cannot protect themselves against predators very well because of this, so they are easy prey.
The main predator of the African penguin is the leopard and whales. They use their agility and their feet to protect themselves from the predators.
Antelopes live together to protect themselves against predators.
Yes either to take down prey or fend off predators
predators
Hopefully the individual themselves. If not, there are laws that protect potential victims against sexual predators.
A rhinos large size is its first line if defense. Secondly, they are covered in hide that is so tough it is almost like armor against predators. Third, they have horns and charge any potential predators. They are formidable enough that adults don't have any natural predators. They cannot protect themselves against humans, though.
To protect themselves from predators.
they can hide
they can't proyect themselves
A hedgehogs special features is the spikes because it helps them to protect themselves, it is a defense weapon against predators.