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How Fish Eat (in SLOW MOTION!) - Smarter Every Day 118
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سطح CEFR
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زیرنویسها (103 بخشها)
Hey it's me Destin, welcome back to Smarter Every Day.
So as dads, when you go fishing you spend a lot of time thinking about how to get the fish to bite,
but you don't really think about how mechanically the fish do the bite. Does that make any sense?
So today on Smarter Every Day we're gonna go to James Cook University in Australia, and look at how a fish bite takes place in slow motion using a Phantom camera.
You're getting Smarter Every Day.
[ music ]
OK, so, how do fish eat.
So they suck food in, but they have to generate that flow right?
- Oh you talking to me?
- Yes I am, Dr Seymour.
- I'm trying to do two things at once here.
- Alright so we've got a big tank of.. barramundi? Am I saying that right Richard?
- Mm hmm.
- Why do you have a stick and a string here?
- OK this is the stick of death. This is what we use to feed everything with.
So if we hold that over the tank on the water, then you'll be able to focus on that, and you'll be able to see the barramundi come up and [sucking sound].
- OK, got it.
- Here he comes, gone!
[ music ]
(Destin) So how do they actually create that flow inwards?
Are they, like increasing the chest cavity somehow?
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