Geo-tagged shark travels 8,000 kms in 142 days
US-based scientists have tracked a shark covering a sea distance of 8,000 kilometres in just 142 days. Nicknamed as "cheetahs of the seas", the shortfin 'mako' shark species are known to make long treks and can swim at speeds of up to 100 kmph. Several mako sharks are geo-tagged by researchers to track their migration patterns.