The movement of the hard drive's read/write heads over different areas of the disk when accessing fragmented files is slower, compared to accessing the entire contents of a non-fragmented file sequentially without moving the read/write heads to seek other fragments.
The dorsal fins are small and at the base of the tail. The largest mantas can reach 1,350 kg (2,980 lb). In both species the width is approximately 2.2 times the length of the body; M. birostris reaches at least 7 m (23 ft) in width while M. alfredi reaches about 5.5 m (18 ft).
This feature is not available right now. Please try again later. Giant manta ray caught: Fishermen stumble across 26 foot manta ray / stingray / that weighs 1,000 kgs in Peru. The sea creature, which also reportedly weighs more than 1,000 kilograms, was allegedly caught by unsuspecting fishermen off the coast of Peru.