Why dead bats stay hanging upside down
Chapter 1

The physics of the floppy-winged flyer

Chapter 2

Super-hearing and the art of shouting in the dark

Chapter 3

The wildest dinner parties in the animal kingdom

Chapter 4

Cozy nurseries and ancient global legends

YOUR GOAL

Master of The secret lives and goofy truths of bats

Ch 1 · The physics of the floppy-winged flyer
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futura Bat Flight Aerodynamics

Tucking my wings on the upstroke saves thirty-five percent.

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Downward forces can be harnessed to keep us secure and launch us forward.

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The gravity drop flight launch

futura Unlike birds, bats cannot run to build lift, so they roost high and drop into the air to

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The effortless upside down locking feet

futura Glossy candy-coated bat claws hanging upside down and locked onto a branch.

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Fun Fact

Upside-down dead bats: Because gravity locks their toe tendons, bats can remain hanging upside down even after they pass away.

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Glossary
patagium (noun)
A membranous fold of skin that stretches between the limbs of a gliding or flying animal. In 2014, Brown University scientists discovered that bats use microscopic muscles to dynamically stiffen this wing membrane.

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Gossip

If you could fly like a bat, where would you roost?

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Quiz

What are the bones inside a bat's wing structurally equivalent to?

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Quiz

How much active muscle energy does a bat use to hang upside down?

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Quiz

What is the maximum wingspan of the giant golden-crowned flying fox?

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Quiz

Why must most bats drop from high roosts to start flying?

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Quiz

Why doesn't blood pool in a bat's head while hanging upside down?

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Quiz

In which direction do a bat's knees point?

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Quiz

What biological feature automatically locks a bat's claws onto a branch?

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Quiz

Which country is home to the world's smallest bat, the bumblebee bat?

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