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This is Scientific American 60 Second Science.

I'm Suzanne Bard.

About 12,000 species of tiger moth exist on Earth.

Some of them swoop and dive out of harm's way when a hungry bat tries to make them a meal.

But other tiger moth species are more blaze.

They just don't bother to flee from the hungry bats.

And I really just wanted to know why, why the difference. What factors might be influencing whether a species is more or less likely to perform these evasive maneuvers? Wake Forest University

behavioral ecologist Nick Dowdy. He says it's a matter of taste.

Some of the moths are delicious, but others are toxic and taste terrible. When the airborne predators

catch these unappetizing moths, they'll spit them out, giving the insects a new lease on life.

In a field experiment, Dowdy and his colleague William Connor filmed how five

different species of tiger moths responded to bad attacks.

And what we found was that those species which were really toxic, so when the bats captured

them, they almost never ate them, those species were much more likely to be what we call

nonchalant, species that do not

perform evasive maneuvers very often. On the other hand, species that were really palatable

were much more likely to perform those evasive maneuvers, almost in a sense sort of hedging

...