Killer Whaleシャチ

Species Data

Classification

Artiodactyla / Delphinidae Source

Size

Males 6–8 m (maximum 9.8 m), females 5–7 m (maximum 8.5 m)

Weight

Males over 6 tons (maximum over 10 tons), females 3–4 tons

Lifespan

Wild: females 50–80 years (records exceeding 90 years), males about 29 years (up to 60 years); captive: average in the 20s, maximum in the 40s

Diet

Carnivore An apex predator with no natural enemies; preys on a wide range of animals, from fish such as salmonids and herring to sharks and rays, whales large and small, pinnipeds, sea otters, and seabirds, with each pod specializing in different prey

Activity

Shows a behavioral pattern combining foraging, travel, rest, and socializing, and may travel more than 100 km a day; swimming speed exceeds 50 km/h, with a maximum of 56 km/h

Distribution

Found in all oceans and most seas worldwide, with a preference for higher latitudes and coastal waters; densities are highest off Norway, the Aleutian Islands, the Gulf of Alaska, and in Antarctic waters. Around Japan it is most often sighted from the Kuril Islands to Hokkaido, though past hunting has limited current numbers. Source

Sources

ja.wikipedia.org en.wikipedia.org

Did You Know?

• It forms complex matrilineal societies and exhibits distinct pod 'dialects,' with hunting techniques and vocalizations passed down across generations—evidence of animal culture. Source
• It is the largest member of the dolphin family and one of the few animals known to undergo menopause, living decades beyond reproductive age. Source
• In 2025, researchers documented the first known tool use in orcas, a behavior called 'allokelping' involving the manipulation of kelp. Source

Former facilities

Closed: 2001-08-31 Official Site

FAQ

Is the killer whale actually a whale?

No, biologically it is the largest species of oceanic dolphin (family Delphinidae), not a true whale, despite its common name. Source

What threats do killer whales face?

Major threats include depletion of prey species like salmon, pollution from toxins such as PCBs, vessel noise and collisions, and historical capture for marine parks. Source

Why is the IUCN status listed as Data Deficient?

Because killer whale populations vary enormously in diet, behavior, and genetics across regions, the IUCN has not yet been able to assess the species as a single global population. Source

How many operating facilities are registered here?

Operating facilities registered on this site: Japan 4 Source

Books & gear

• Killer Whale book
• binoculars