Being large and fast, emus do not need to defend themselves very often. Apart from man, there are no natural predators of adult emus in Australia.
Emus can deliver a powerful kick, and they have long, sharp claws on their toes.
Furthermore, emus possess a unique defence capability, which would aid them if they were in the position of having to outrun a superior predator. When running at top speed, the physiological structure of their feet enables them to make sudden 180-degree turns which not even a small cat can do: by the time a bigger creature slowed enough to make the turn, the emu would be 50-60 metres ahead in the opposite direction.
It protects itself
Of and by itself, none.
An emu will squat down and slowly lower itself to the ground, with its neck folded in on itself. Although the emu sleeps for a total of about 7 hours a night, it will wake up every 90-120 minutes and rise back into the squatting position.
it`s armored body protects itself from predetors
As a matter of fact, three species of emu are now extinct. The King Island emu (or Black emu), Tasmanian emu and the Kangaroo Island emu (or Dwarf emu) are all extinct as a result of being hunted for food by whalers and sealers in the 19th century. The mainland emu (Dromaius novaehollandiae) is able to defend itself against predators, outrunning them with its high speed, endurance and exceptional ability to turn quickly.
a tiger salamander protects itself by poisoning its prey.
the eye lashes protects the eye from on coming objects
The emu is not in need of protection. They are found in abundance throughout mainland Australia, from coastal areas to Alpine areas, to grasslands and semi-arid areas, and even the outskirts of urban settlements. There are even emu farms, where products from the emu are commercially farmed.
it protects itself by being on a high tree or being in a herd with its friends and relatives.
a falcon protects itself with its claws and beak.
Armour and a sword
by it's thorns