Nose-horned (Big-nosed) Chameleon (Calumma nasutum), Parc National de Ranomafana, Ranomafana, Central Madagascar, Africa

African Cape Buffalo looks onward as Oxpecker inspects its nose, South Luangwa National Park, Zambia, Africa

male nose-horned viper (vipera ammodytes ruffoi) Northern Italy (Alto Adige)

male nose-horned viper (vipera ammodytes ruffoi) Northern Italy (Alto Adige)

Horned, Long-nosed or Nose-horned Viper (Vipera ammodytes)

Close-up portrait of a male common waterbuck (Kobus ellipsiprymnus) looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

Mono, close-up portrait of a Cape Buffalo (Syncerus caffer) standing, eyeing camera in Segera, Segera, Laikipia, Kenya

Two yellow-billed oxpeckers (Buphagus africanus) in Cape buffalo (Syncerus caffer) nostrils, Klein's Camp, Serengeti National Park; Tanzania