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This is Scientific American 60-Second Science. I'm Amy Kraft. Got a minute?

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Some ecotourism offers visitors close encounters with different species.

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But new research suggests that these activities may not be so great for the animals.

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Researchers tagged stingrays in Stingray City in the Cayman Islands to monitor their movements and behavior.

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Compared to stingrays outside of the tourism area, those in Stingray City switched their activity patterns from night to day,

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when tourists handed out food, and mated year round instead of seasonally.

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The stingrays also had more bite marks, which suggests increased aggression towards one another.

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The study is in the journal PLoS ONE.

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Past research has found increased stress and more intra- and inter- species aggression among animals that have been fed by humans.

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Interactive tourism is a growing business.

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But researchers say that more study is needed to ensure the health and safety of humans and animals alike.

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Ecotourism may be good for a given species, as humans become engaged in its survival.

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But for the individual members of that species tasked with dealing with people, it may not be a walk in the park.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Amy Kraft.

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