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ELA 3: Echolocation and Whale Songs 20 Views
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Description:
Unlike whales, humans unfortunately can't detect the location of objects by emitting sound. So...stop screeching at the couch. It doesn't know where you left your keys.
Transcript
- 00:02
[Dino and Coop singing]
- 00:13
Whales communicate with one another, just like humans do. [Whales speaking to each other]
- 00:16
Okay, maybe with a little less texting... [Whales using mobile phones]
- 00:18
How do they do it?
- 00:19
By using something called “echolocation.”
Full Transcript
- 00:21
Echolocation is when whales make sounds that are reflected back to them when it bounces [Coop pointing at a blackboard]
- 00:26
off of another object.
- 00:27
Like when you shout into a canyon. [Boy shouts into a canyon]
- 00:30
Echolocation is very important because it helps whales hunt, navigate in the water, [Whales holding a gun, reading a map and holding a phone]
- 00:34
and uh…just conduct interesting chit-chat.
- 00:36
There are two types of whales—toothed whales and baleen whales—and they communicate differently.
- 00:42
Toothed whales, such as the killer whale, use echolocation for hunting and navigating…
- 00:46
…but baleen whales, such as humpback whales, use deep sounds that sound like songs to communicate [Dino pointing at a blackboard]
- 00:51
with each other.
- 00:52
If you ever see a whale performing at a karaoke bar, dollars to donuts it’s a baleen whale. [Whale singing into a microphone]
- 00:57
So…what exactly are whale songs and why are they important?
- 01:00
Well, first of all, no one’s doing Celine Dion covers down there. [Whale next to the sunken Titanic]
- 01:03
We’re actually talking about sounds like groans, moans, roars, and even high pitched
- 01:08
squeaks.
- 01:09
Each whale song can last 10 minutes or longer. [Whale singing on stage]
- 01:11
Queen would be jealous. [Freddie Mercury appears]
- 01:12
Whales use these songs to communicate—to find other whales, warn each other of predators,
- 01:17
and find their way in the ocean.
- 01:19
And…to keep themselves occupied in the shower. [Whale singing in the shower]
- 01:21
Humans have to use special technology in order to hear many of these whale songs. [Man wearing headphones and holding a microphone]
- 01:25
Our ears actually cannot hear most of them, because they are very, very low in pitch. [Old man trying to speak to a whale]
- 01:29
Plus, they’re even harder to hear when a singing whale has its driver’s side window [Whale in a car]
- 01:33
rolled up…
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