"One day I noticed one of the young whales appeared to have come up with a procedure for luring gulls down to the pool," the professor said. "I found it interesting so I noted it in my log."

First, the young whale spit regurgitated fish onto the surface of the water, then sank below the water and waited.

If a hungry gull landed on the water, the whale would surge up to the surface, sometimes catching a free meal of his own.

Noonan watched as the same whale set the same trap again and again.

Within a few months, the whale's younger half brother adopted the practice. Eventually the behavior spread and now five Marineland whales supplement their diet with fresh fowl, the scientist said.

"It looked liked one was watching while the other tried," Noonan said of the whale's initial behavior.
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