The pygmy killer whale isn’t actually a whale at all, but a species of dolphin, like other killer whales (orca). These critters are the smallest cetacean species with the word “whale” in its common name. Even though they face the threats of overfishing, pollution, and potentially climate change, these cetaceans are abundant and common. Therefore, they are listed as Least Concern by the IUCN. Their population trend is unknown.
First the Stats…
Scientific name: Feresa attenuata
Weight: Up to 496 lbs.
Length: Up to 8.5 feet
Lifespan: Up to 21 years
Now on to the Facts!
1.) In the wild they are considered passive. However, in captivity, they are considered extremely aggressive.
2.) Even though they were first described by John Gray in 1874, based off a couple of skulls, they received their formal naming by Japanese cetologist Munesato Yamada in 1954.
3.) They have 48 teeth. 22 on the top jaw and 26 on the lower jaw.
4.) Their average swimming speed is just 2 mph. But they can swim faster if the need arises.
5.) Pygmy killer whales can descend to depths of up to 6,500 feet.
But wait, there’s more on the pygmy killer whale!
6.) These dolphins are often confused with false killer whales and melon-headed whales.
7.) They can be found in pods of up to 30+ individuals.
Did you know…?
Just like other dolphin species, these critters utilize echolocation (sonar) to find food.
8.) The pygmy killer whale prefers tropical and subtropical waters, and can be found worldwide.
9.) Breeding usually takes place in the Gulf of Mexico. This is known as site fidelity.
10.) Sans a constant bombardment from parasites, these cetaceans are also the victims of cookiecutter sharks, orcas, and larger sharks.
Now a Short Pygmy Killer Whale Video!
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Some source material acquired from: Wikipedia & IUCN
Photo credit: Nature Picture Library
