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Ecotourism is a booming business that many tour operators as being helpful to nature. Every year, millions of people on protected and pristine natural areas to rare species. However, a new report doubt on the value of this form of tourism. In fact, it that ecotourism is more damaging than helpful to nature. Details are in a report in the journal 'Trends in Ecology and Evolution'. Researchers tourists are animals in their natural habitat. They to a recent event where sea turtles in Costa Rica had problems laying their eggs because of the hordes of tourists who had to watch the turtles' nesting habits.

The report says that ecotourism is animals bolder and that this could the animals. A regular human presence might animals tamer and less cautious about other animals around them, and this could them at risk of attacked by their natural threats. "Then they will higher mortality when they encounter real predators," the report says. It added: "When animals in 'benign' ways with humans, they may let down their guard." The report said it was essential, "to a more comprehensive understanding of how different species in different situations to human visitation and under what precise conditions human exposure might them at risk."