Photo taken under NOAA permit
Orca Facts
These orca fact pages come from our Killer Whale Tales Activity Booklet Volume 2. You can download a copy of the complete document by clicking below.
Orca facts


Listen to Orcas Live!
Orcas rely on sound to navigate and communicate in the dark world underwater. Light travels just a few feet in our murky waters, which makes sight useful only in close encounters. Sound can travel for miles, making it possible for orcas to communicate with each other, navigate and locate prey over long distances. Hydrophones are underwater microphones that allow us to listen in on the sounds that orcas make underwater and get some clues about what they might be doing.
Then we can start asking questions—When did they make the sounds? Which calls were they using? Which whales were seen on the surface and what were they doing? We can start to see patterns and use these patterns to learn more about life in an orca pod. Using hydrophones we can listen for orcas as they travel throughout the Salish Sea. By learning to identify their calls, you can help researchers learn more about how our local orca pods use this critical habitat.
Click below to get started!
Orca sound
19 September 2013
Photo taken under NOAA permit
Great Calls, including a whale repeating an S36 call right over the hydrophone. Also, listen for a breach!
19 September 2013
Photo taken under NOAA permit
Shorter clip with lots of echolocation
20 October 2013
Photo taken under NOAA permit
A seven minute clip of phenomenal calls. All three pods and not a bit of background noise.
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