Tawny nurse shark (Nebrius ferrugineus), Maldives

Tawny nurse shark (Nebrius ferrugineus), Maldives

Nocturnal in habits, the tawny nurse shark tends to spend the day resting in piles of two dozen or more individuals inside caves or under ledges. At night, it is an active-swimming predator that uses a powerful suction force to extract prey from inside holes and crevices. The diet of this species consists mainly of octopus, crustaceans such crabs, small fishes.

Brazil: The Boto, pink dolphin of Amazonia

23 to 7 millions of years ago, during the Miocene era, Amazonia was partially covered by seawater. Cetaceans were living in this area. When seawater has been definitely out of Amazonia ground, a species would have adapted to continue living in rivers, drawing the Amazonian landscape. This species became the Boto, known also as the biggest pink dolphin of Amazonia.

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