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[–]Vigte[S] 2 insightful - 2 fun2 insightful - 1 fun3 insightful - 2 fun -  (1 child)

Probably just a poorly worded comparison on CalTech's part.

The bottom of the wing is hydrophilic and the top is hydrophobic - just don't tell them they're doing the Butterfly stroke. ;)

[–]Tom_Bombadil 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

The bottom of the wing is hydrophilic and the top is hydrophobic

Is that true? Super cool!

You're probably right. Breast stroke probably failed the click bait test.