Read the story, then do the math together!

A Secret about Seahorses

A Secret about Seahorses

Most animal tails are round: if you looked a dog's tail head-on from the tip, you'd see a circle (its "cross-section"). But the seahorse's tail is square. It's actually a stack of 36 square plates; each square is made up of 4 L-shaped bones. Scientists figured out that a square tail is actually stronger and takes less energy to move than a round one. Scientists think this could help them build stronger robots, in case those robots ever need to grab some seaweed for dinner.

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