GREEN
09/09/2010 05:00 pm ET Updated May 25, 2011

Bowerbirds Build Optical Illusions To Look Bigger For Potential Mates, First Known Non-Human Animal To Do So

Great bowerbirds are known for their dramatic mating displays and elaborate constructions. Now researchers have determined males of this crafty species build staged scenes that make themselves look larger or smaller than they actually are.

As a result, the scientists believe great bowerbirds are the first known non-human animals that create scenes with altered visual perspectives for viewing by other individuals.

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