LEARN ABOUT KILLER WHALES
Killer Whale (Orcinus orca)
(other names - Blackfish, Orca, Orca Whale)

Kingdom: Animalia
Phylum: Chordata
Sub-Phylum: Vertebrata
Class: Mammalia
Order: Cetacea
Sub-Order: Odontoceti
Family: Delphinidae
Genus: Orcinus
Species: orca
       Females
Males
weight up to 7,500 kg up to 10,000 kg.
life
expectancy
50 years average, 90 maximum
30 years average, 50 maximum
dorsal fins 2 - 2 ½ feet tall 6 ft. tall.




 

How to Identify a Killer Whale

  • Shiny black body with white belly
  • 22 to 28 feet long
  • Can be seen alone or in large groups of 20 or more animals
  • Generally travel at 6 to 8 km per hour
  • Grey patch on the back behind the dorsal fin

 

What Does a Killer Whale Look Like?
move cursor over body parts to see enlargement*

How Can you Tell Whales Apart?

photo by J.K.Ford
The easiest way to tell adult killer whales apart, is by looking at the size of their dorsal fin.

In this example the adult male's dorsal fin is 6 feet high and the adult female's dorsal fin is about 2 ½ feet high.
Dorsal Fins
Click here to to compare the size and shape of dorsal fins of different whales.

photo G.Ellis
  MUG SHOTS
Killer whales have unique markings that make individuals recognizable. Just like every human has a unique fingerprint, each individual killer whale has a unique combination of nicks, scars and saddle patch markings that researchers can use to learn more about these whales.
Killer Whale Behaviors

photo by J.K. Ford

When traveling, killer whales generally will come to the surface three or four times in a row, and then go down on a longer and deeper dive that lasts several minutes.


Killer whales will sometimes "play" and engage in other behaviors.


breach
photo by Lance Barrett-Lennard and Kathy Heise
This is a picture of a killer whale breaching, or jumping all the way out of the water.

spyhop 
 photo G.Ellis
When a killer whale sticks its head up and out of the water, this behavior is called a spyhop.
HOW CAN YOU SPOT WHALES?


See how low and diffuse these killer whale blows are.
photo J.K. Ford

For more information on how to identify
different types of whales click here

Blows
Often a good clue that helps to find whales, is to look for the "blow". This is created when the whale comes to the surface to breathe and looks a little like a puff of smoke.

Take a look at the blows of other whales to compare them to the blows of killer whales.

VIDEO CLIPS:
These short video clips might help you to identify
killer whales in the wild.
They may take a few minutes to load.
 
you must have quicktime installed
to view these movies. Click here
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Dall's porpoises and killer whale (1700k)
Here are some Dall's porpoise swimming with killer whales. Note the difference in body size and shape between the two different animals.
 
Killer whale group diving (1000k)
This is a video of a pod of killer whales swimming together.
 

A Word of Caution
The only other marine mammal that might be confused with a killer whale, is the Dall's porpoise. The porpoise is much smaller (no more that 6 feet long) and the body shape and dorsal fin size are quite different as compared with a killer whale.


Dall's porpoise*
 

killer whale*

 

 

LINKS:
This was a quick introduction to the killer whales of Alaska. If you want to find out more about killer whales, here are a few other places to search.

 
*All illustrations by Alistair Denbigh