A Nile crocodile, Crocodylus niloticus, basking near the Chobe River. Chobe River, Chobe National Park, Kasane, Botswana.

crocodylus niloticus natural area river stream sunset adult alone head tooth eye glance rest close up portrait profile shot day chobe national park look crocodylus nile crocodile crocodylus niloticus evening warm to bank rive national park least concern iucn lc may nobody nature natural areas ecosystem ecosystems rivers stream sunsets adults single lonely only solo one lone heads teeth hook zoology hooks zoology eyes glances looking at camera siestas resting siesta rested restful make the siesta making the siesta being lazy be lazy portraits profile sights profile sight profile shots profile view profile views side view days daytime looked looking day fall nightfall late afternoon warm itself warmed warming warming itself water edge banks rive water edges national parks sensitive natural areas least concern species with nobody naturalness area body of water freshwater wetland area sun space stage of development individual enumeration general morphology morphology organism morphology zoology sensory system physiological system organ anatomy shot atmosphere ambiance botswana protected areas botswana southern africa africa crocodylinae crocodylidae crocodylia lepidosauria reptilia tetrapoda vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota crocodile reptile wild animal animal twilight environment protection environment management biodiversity management environment convention on international trade in endangered species of wild cites species low risk iucn lr iucn red list of threatened species