Principally killer whales eat fish. Salmon is a favourite creature of their weight-reduction plan. Northern killer whales eat bigger prey similar to sea lions, harbor seals, porpoises, grey whales or Minke whales. Generally a killer whale pushes itself ashore to seize a seal or sea lion after which slides again into the ocean. The weight-reduction plan of offshore killer whales contains blue sharks, salmon sharks and sharks. Some of the fascinating information about these animals is that an grownup can devour 100 kg of meals per day. These animals hunt with the assistance of echolocation. That is what they’ve in widespread with dolphins. Orcas make a high-frequency sound.
When the sound hits an object, it bounces again to the animal. An orca can decide whether or not an object is prey by the kind of echo sound that returns to it! A bat makes use of the identical looking methodology because it flies by way of the air. Who knew that orcas and bats had one factor in widespread! Though these animals don’t have any pure predators, they do face some threats. Water air pollution is a risk to habitats. Additionally, orcas are generally killed by industrial fishermen as a result of they eat a lot of the prey fishermen are attempting to catch. Tourism poses one other risk to orcas. Boats with vacationers on them can disrupt the surroundings and actions. Respiratory problems, coronary heart illness, Hodgkin’s illness, and tumors are some examples of ailments that have an effect on these animals. They’ll additionally turn out to be stranded on a seaside and die.