For a study published recently in the journal Applied Animal Behavior Science, researchers tested captive bottlenose dolphins in French theme park Parc Astérix. They played a different sound before offering the animals different stimuli, including adding toys to the water, bringing a trainer to play with them, and a control, where they left the dolphins to do as they wished.
The researchers found that when the dolphins were presented with the sound indicating they would get to interact with people, they would “look forward” to the interaction more than being offered toys or the control group, according to the study. The researchers came to this conclusion because the animals would engage in “spy-hopping,” in which they would poke their heads out of the water to see what’s happening. According to the study, this "indicates motivation to participate in certain events."
More at: http://www.newsweek.com/captive-dolp...vs-dogs-946315
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