Sunday 19th August, 5pm Watch again on Tuesday 21 August, 9pm and Saturday 25 August, 9pm
This programme tracks and observes sharks in their hunting grounds and ranks a number of species according to their skills, level of development, and status as the ocean's ultimate hunters.
It reveals surprising insights into exactly how the most ruthless shark species have earned and retained their reputation as the undisputed rulers of the world's oceans.
Also investigated are new scientific applications and technologies being developed using the unique qualities of sharkskin, including the testing of its barnacle-shedding properties on ships and its bacteria-resistant properties to coat operating tables and catheter tubes.
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