Marine

Marlin: superfish
Swifter than a shark, more dashing than a dolphin and wielding a sword-like bill, the marlin is a swashbuckling superfish. Yet little is known about it and its billfish relatives.
The pink river dolphin of Brazil article spread
This bizarre creature is a pink river dolphin, a species never before photographed underwater in the wild until Mark Carwardine embarked on a mission to the Rio Negro in Brazil.
In some parts of the world, orcas and great whites frequent the same waters, but
Which is the greatest ocean predator - the orca or the great white shark? A shocking encounter off the Californian coast reveals the answer. 
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