Orca a.k.a. killer whale
(Orcinus orca)
| Fact title | Fact data |
|---|---|
| Size |
7-8 m
|
| Weight |
up to 7 tonnes
|
| Lifespan |
90 for females and 60 for males
|
Despite their common name ‘killer whale’, orca are actually the largest species of dolphin. Their dorsal fin can be used to recognise individuals, and in males can measure an incredible 1.8 metres in height. Killer whales are found in every ocean on the planet, and as well as being the most widely distributed, they are also one of the fastest sea mammals, reaching speeds of up to 55kph.
the fastest sea mammals, reaching speeds of up to 55kph
As distinguished marine predators, these strikingly marked killers employ a number of clever techniques to catch their prey. These include herding, coordinated attacks and wave washing seals off ice floes.
Alaska sees an overlap of three distinct communities of Orca - “resident” fish-eating orca, “transient” mammal eaters, and offshore.
Killer whales have no natural predators, though when young they may be attacked by large sharks or other orca.
Did you know?
Killer whales have been known to hunt down grey and even blue whales.
