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As twilight descends, nocturnal bat species rouse from their daily resting places to feed, creating spectacular clouds as they pour out of caves en masse.

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But look closer at Jamaican fruit bat colonies as they emerge from sinkhole caves in Cuba, and you may catch a glimpse of a concurrent macabre ritual: As the bats erupt from the cave, a deadly curtain of Cuban boas hangs in their path, aiming to snatch the winged creatures mid-flight. Vladimir Dinetsa research assistant professor at the University of Tennessee, Knoxville, was guiding a bird- and mammal-watching tour through Desembarco del Granma National Park, Cuba, when he first noticed the cavern-hunting snakes.

Intrigued by the bold behavior, he decided to take a closer look.

As daylight faded, some of the snakes would move from their warm nooks into the passageway. There, they would dangle their serpentine bodies from the ceiling, ready to strike as bats flew past.

Other snakes would take up similar hunting uk foreign exchange programs as dawn approached, catching the bats as they returned.

During each potential mp3 bulls make money opportunity, Dinets dutifully recorded the position of the snakes as well as their hunting success, or lack thereof.

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After 8 days of records, Dinets concluded the snakes coordinated their huntsand published his results in the Animal Behavior and Cognition. The first boa would pick its place.

Then, when the next slithered up, it would position itself in near the first. And if a third snake joined in, it would hang with the others, too.

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Dinets considered that the snakes might all just prefer the same areas of the passage, but no snake chose the same segment twice during the entire study, suggesting woodies cci forex trading, not similar taste in locale. And that coordination paid off—boas were significantly more likely to capture a meal if they hunted together.

Still, coordination to maximize hunting success is practically unknown in reptiles crocodilians and monitor lizards are notable exceptions. Writer, ecologist, and wildlife photographer Neil Losin and his colleagues have observed a similar strategy among snakes in Puerto Rico.

Again, no one has looked closely for coordination. Christie Wilcox is a science writer, author of Venomous: Follow her on Twitter.

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