Understanding the human body is a team effort. That's where the Yachtel group comes in.

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This is Scientific American 60 Second Science. I'm Mark Stratton.

Everyone loves zebras. No doubt it's the Natty Stripes.

But recent research into why the stripes exists indicates that the markings may be something of a mixed blessing for the zebras that wear them.

New research adds to evidence against

old ideas that somehow stripes cool them down or confuse predators such as lions. Confusing lions

will be nice for them. But the good news is that a group of researchers have additional evidence

in support of a hypothesis they proposed in 2014.

Stripes seem to confuse biting flies, causing them to overfly or crash into the zebras.

The study is in the journal Proceedings of the Royal Society B.

Various ideas have been tossed around in the last 150 years about the African

equid stripes. This debate goes right back to the birth of evolution with Darwin and Wallace

exchanging letters on the subject. Martin Howe are biologists who studies animal vision

at the University of Bristol and lead author of the study. Howard's

colleagues sought a mechanism for how stripes cause insect confusion. They began with domestic

horses in Great Britain. They covered the horses with rugs featuring an array of designs from

single colour black or grey to check patterns and, of course, zebra stripes.

The researchers then recorded videos of horseflies trying to get at the horses.

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