This essay introduces the food chain, habitat, adaptability of orcas, and writes about the important of orcas in the world.

 The reason why orcas are important in the world is that they are vital to maintaining marine biodiversity and ecological balance. In modern times, humans have discovered that orcas have high IOS. If orcas are tamed, they will be friendly to humans. Orca which has boosted the economy of oceanariums.