Previously, scientists did not
know how the sharks took their rest
Friday 1 July 2016
How the creatures rested has
previously been unknown, particularly as the species must be constantly on the
move in order to breathe.
But using hi-tech robotics and
underwater cameras, they now believe they know how the sharks – which can grow
up to six metres long – take their slumber.
Footage, shot by the Discovery
Channel, followed a female great white, nicknamed Emma, as the sun set near the
Isla de Guadalupe, west of Mexico’s Baja peninsula.
As night fell, the shark’s
behaviour began to change. While in daylight hours, great whites tend to stay
in deep waters to swoop on prey, at night they are known to move in
closer to the shore.
Emma is “hugging the shoreline,
staying close to the bottom,” observes one of scientists in the film.
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