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Hippo Shows Teeth in Yawning Display

Hippo yawning
Caption: Hippo opening its jaws wide during a yawning display, Moremi Game Reserve, Botswana. An adult hippo, with its huge mouth, large, sharp teeth and powerful jaws, is capable of chopping a medium-sized crocodile in two. The hippo's "yawning" display is designed to show off the long, sharp canines and incisors to would-be competitors or intruders. Yet it's the broad, flat molars further back in the mouth that have the more essential function of breaking down the grass on which hippos graze.  © Scotch Macaskill

Camera: Canon EOS 400D (Rebel XTi); Lens: Canon EF 100-400mm f/4.5-5.6L IS USM zoom; Focal Length: 350mm; Shutter speed: 1/250; Aperture: f/5.6; ISO: 400.

Location: Moremi Game Reserve, established in 1963, lies in the eastern region of the world-renowned Okavango Delta in Botswana.

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