Killer whales- oceanic deadly predators
Did you know that these amazing marine mammals aren’t actually whales?
Killer whales or Orcas belong to the oceanic dolphin family and are the largest of them.
They are well-known for their long fin on the back and distinctive black and white coloring. Killer whales can be found in all oceans from polar regions to the tropics and equator, but especially in cold coastal waters.
Orcas are one of the most powerful and fastest predators on Earth and can reach speed of 30 knots (about 34 mph, or 56 kph). They hunt on any marine animals, and some of them also prey on fish. Orcas hunting techniques are various, unique, effective and deadly. Sometimes they hunt in groups like wolf packs.
Killer whales are well-known for their complex societies, which structure is comparable to elephants or higher primates. For hunting and communication they use echolocation , and every pod has their own distinctive sounds. Orcas can live from 50 to 100 years.
People kill orcas for various reasons: someone for the food, some one for protection of fish population. Oil and chemical contaminations of the oceans and seas also pose a big threat for the orcas. Because of this, some their populations are protected, according to the National Oceanic and Atmospheric Administration.