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Reptiles Archives

Nile Crocodile Standing Up

Nile crocodile standing up on all foursCaption: Nile Crocodile (Crocodylus niloticus) stands up on its legs from a lying position before entering the water, Nyamithi Pan, Ndumo Game Reserve, KwaZulu-Natal, South Africa.

Camera: Canon EOS 450D (Canon Rebel XSi 12.2MP); Lens: Canon EF70-300mm f/4-5.6 IS USM; Focal Length: 210mm; Shutter speed: 1/160; Aperture: f8; ISO: 800; 29 July 2009, 4.55pm.

An adult Nile crocodile can weigh 500 to 600 kilograms (1,100 to 1,300 lbs)and a large one, when standing on all fours, will reach up to man’s waist.

It’s worth remembering though that there are numerous myths and legends about crocodiles, and their size, in particular, is often exaggerated. To find out more about these fascinating and dangerous reptiles, read Roddy Smith’s article, Nile Crocodile – Stranger than Fiction. See also our previous blog post, Nile Crocodile with Jaws Open.

Nile Crocodile with Jaws Open

Nile crocodile

Caption: Nile Crocodile (Crocodylus niloticus) catching last rays of the afternoon sun on the banks of Nyamithi Pan, Ndumo Game Reserve, KwaZulu-Natal, South Africa.

Camera: Canon EOS 450D (Canon Rebel XSi 12.2MP); Lens: Canon EF70-300mm f/4-5.6 IS USM; Focal Length: 300mm; Shutter speed: 1/320; Aperture: f8; ISO: 800; 29 July 2009, 4.43pm.

Crocodiles will often be seen lying on the banks of rivers or lakes with their mouths open and jaws agape, showing off their fearsome teeth (as in the picture above). This is a way of releasing heat and cooling their bodies as they do not have sweat glands.

Crocs are cold-blooded predators and can survive long periods without food, so will only rarely go out actively hunting. They appear lethargic and slow moving, but can move quickly over land and in water and are successful predators within their environment.

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