
Morrocoy National Park, Venezuela.
The Whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 36 ft and a weight of about 21.5 t. In some cases, the whale shark has been said to be fairly friendly and playful with divers.

Underside of Humpback Whale (Megaptera novaeangliae) with filtered sunlight, Hawaii by Flip Nicklin
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An eagle ray swimming along