I mean like, if no blood particles have traveled to them in the water, how can they possibly know that it is there? Is it just a myth?
In: Biology
Blood particles **have** reached them. A very, very small amount of blood, in a very very large amount of water…but there’s blood in the water just the same.
Imagine getting a big bucket of water, and a bottle of food colouring. Put one drop of food dye in the bucket. There’s not a lot to see when it’s just one drop in an entire bucket. If you got a glass of water out of the bucketful, you probably wouldn’t notice anything different about the colour. But you definitely put the colour in, didn’t you?
The shark’s nose Is sensitive enough to find the one drop in the bucket. Even if you can’t.
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