HAYWARD, California: Darting around the pool as a group of swimmers stands in the shallow end, the dolphin looks much like those that jump through hoops and perform acrobatics at theme parks.

“When I first saw the dolphin, I thought it could be real,” said a woman who swam with the remote-controlled creature. Edge Innovations, a U.S. engineering company with an animatronic and ...

“Dino Days,” running until September 1, brings 13 animatronic dinosaurs to the outdoor gardens of San Francisco’s California Academy of Sciences. Tyrannosaurus rex, Deinonychus ...

There’s the size and scale of the animatronic dinosaurs lurking behind the bamboo bushes. There’s the scary screeches and roars they make and the elegant ways in which they move. But perhaps ...