All about Orca Whales


Did you know, if orcas were, whales or dolphins? Regardless of being called killer whales, orcas be a member of the dolphin family Delphinidae. They’re the sole species in their category, but their nearest family members are dolphin species from around South East Asia & Australia like the Irrawaddy dolphin. Thus, orcas are dolphins not whales. For what reason are orcas dolphins called ‘Killer whales’ the point at which they are dolphins? Dolphins and whales are firmly related. As per hypothesis, Orcas were given the name ‘killer of the whale’ by ancient whalers, and the name got ruined into ‘killer whale’ over time. The Latin name for orcas or killer whale is Orcinus orca, it also reflects this perception of orcas feeding on huge whales. Orcinus means ‘of the realm of the dead,’ and orca alludes to a kind of whale. We know that orcas whale are top predators, indeed, but not the horrendous ‘whale killers’ that the old sailors believed them to be. On the off chance that you could give orcas another name, what might you call them?

What Does An Orcas Look Like?


A question pops up in peoples’ minds when they look at an orca, “is orca a whale?”. Well, orcas have an extraordinary appearance, they are known for their long dorsal fin and highly contrasting black-and-white shading. Behind the dorsal, a grey patch exists. This grey patch is known as a “saddle”. An orca’s body is tube-shaped and decreases at the two closures to frame a streamlined shape. They are formed for tearing prey. Rather than biting their prey, they take one major swallow – and in all honesty, these brilliant beasts can swallow little seals and sea lions entirety! Bigger prey is torn into pieces before being eaten.

According to National Geographic, orcas are one of the most abundant classes of the dolphin group. The average weight of orcas is about 6 tons (5,443 kilograms) and height varies from 23 to 32 feet (7 to 9.7 meters). The largest orcas whale recorded till now was 32 feet (9.8 m) long.


Various Kinds of Orcas

There is more than one kind of Orcas. It wouldn’t be wrong if someone asks, “is orca a whale”. Because for long-time Orcas were considered one species, however now apparently there are several species (or if nothing else, subspecies, specialists are yet figuring this out) of orcas.

As specialists become familiar with orcas, they have proposed categorizing the whales into various species or subspecies dependent on hereditary qualities, diet, size, vocalizations, geography, and physical appearance. Millions of years ago, different groups began eating various things to abstain from competing for the same food. Presently these groups are different, not withstanding their distinctive appearance and cultures. In the Southern Hemisphere, the proposed species include those alluded to as

  1. Type An (Antarctic)
  2. Large Type B (pack ice killer whale)
  3. Small Type B (Gerlache killer whale)
  4. Type C (Ross Sea killer whale)
  5. Type D (Sub-antarctic killer whale)


In the Northern Hemisphere, the proposed species include inhabitant killer whales, offshore killer whales, and Type 1 and 2 Eastern North Atlantic killer whales, and Bigg’s (transient) killer whales. Determining species of killer whales is significant not only in gaining information about the whales but in protecting them—it is difficult to determine the abundance of killer whales without even knowing what number of species there are.

Orcas at Seaworld:


Below are orcas dolphins eco-types

  1. A distinct structure or race of an animal species occupying a specific territory
  2. Northeastern Pacific occupants are fish-eaters while their transient partners mostly eat marine mammals

Orcas living in waters off New Zealand have even been known to eat rays & sharks.

Orcas at Seaworld are apex predators, which means they are at the top of the food chain. Killer whales are some of the largest and most dominant creatures in the sea, and no other predator can challenge them. Herding fish before shocking them with tail strikes is one of numerous manners by which these predators chase their prey. As exceptionally smart predators, orcas also work together in coordinated attacks to make waves that can thump prey off drifting ice into the water. Orcas have even learned the dangerous trick of beaching themselves to catch ocean lions in Patagonia before wriggling go into the water. A group of orcas is known as a pod. A pod of orcas generally comprises of a developed female, her grown-up offspring, and her little daughters’ offspring. Female orcas beyond breeding age will guide and care about young individuals of the pod.In the sea orcas, it depends on utilizing clicks and whistles to trade data with the rest of the pod. At the surface, they are known to use body language to convey, including breaching, slapping their flippers or tail, and “spyhopping”. Orcas can rest on one side of their brain at times. This permits the side that is conscious to control breathing and forestalls drowning, while the opposite side sleeps. Because of their huge size and immense force, orcas are quick swimmers and have been recorded at a speed of up to 54km/h (33mph).

Some intriguing Orcas facts:


Here is a list of some interesting orcas facts

  • Human females mostly live one-third of their lives after they cease to reproduce. This property can be found only in a few species and one of them is an orca
  • Orcas are the only known non-human creature to have developed evolved on culture
  • Orcas are found in all Oceans
  • Most males never leave their mothers
  • Orcas lifespan shortens in pools.
  • Orcas are one of just three animal species on the planet to experience menopause
  • Killer whales have around 45 teeth (each around 10 cm long)
  • They spend a huge amount of their energy searching for food
  • Orcas can’t smell
  • The average orcas lifespan in the wild is about 50 to 80 years.

Holding Orcas in Captivity

Captive killer whales are live Orcas that are held in imprisonment by humans, frequently for reproducing or execution purposes. The act of catching and showcasing these whales in exhibitions started in the 1960s, soon becoming popular attractions at public aquariums and aquatic amusement parks because of their striking appearance, trainability, intelligence, playfulness, and sheer size. As of record on August 2019, there were 60 orcas in captivity around the world, 33 of which are captive-born.

Are Orcas Endangered?


One of the most important questions to be asked about orcas is that are orcas endangered?

A few cetaceans are currently confronting a questionable future because their populations have declined to the point that there are just a few of them left on the planet. Killer whales are not in the list of endangered species, but they are vulnerable against various dangers of natural and anthropogenic origin. The Red List of the IUCN (International Union for Conservation of Nature) classifies Killer whales in the “Data Deficient” group (DD), however actually some particular populations are now in threat. The orcas that live off the U.S. Pacific coastline, the Southern Resident Orca, are critically endangered. On the off possibility that we do not make a move very quickly, researchers foresee that this population will be wiped out.

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