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Spinner dolphins | The athletes of the sea

Oct 31, 2019
Spinner dolphins can leap into the air and make as many as seven complete spins before diving back into the ocean again. They usual
Oct 31, 2019
Spinner dolphins can leap into the air and make as many as seven complete spins before diving back into the ocean again. They usually perform a series of spins, each spin tending to be made with less energy, finally finishing up with an emphatic side slap. The power of the spin comes from the tremendous acceleration under the water and the torque of the tail just as the dolphin breaks the surface. The aftermath of the spin — the sound of the slap, the splash on the surface, and the dense bubble cloud underwater, which even distant dolphins can pick up through their echolocation, may be the real purpose of the spin.
Spins are most frequently performed while the school is spread out across the water. A spinning dolphin may be signaling to the others: "here I am — here is where I acommunicationm going..." The effect of many dolphins spinning and leaping at once, defines what scientists call the envelope of the school — that is, its size, direction, and speed of travel.
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