South Island tomtit (Petroica macrocephala macrocephala), on Ulva Island, off South Island, New Zealand, Pacific

Female impala, Aepyceros melampus, with redbilled oxpecker, Buphagus erythrorhynchus, in Kruger national park, Mpumalanga, South Africa

King penguin (Aptenodytes patagonicus) chicks (okum boys) at nesting colony at Salisbury Plain, South Georgia, Polar Regions

King penguins (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

Naga man holding spear and wearing headdress of woven cane decorated with wild boar teeth, bear fur, red dyed goats hair and hornbill feathers, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

North American Indian man in traditional dress with beads, fur and feathers, at Calgary, Canada, North America

Naga man dancing and playing musical instrument, wearing headdress made of woven cane decorated with wild boar's teeth, bear fur and topped with hornbill feather, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga men at Grand Finale (tribal dancing) in headdresses of woven cane decorated with wild boar teeth and bear fur topped with a hornbill feather, with tiger claw straps, wearing tiger teeth necklaces, heirloom ivory armbands and aprons decoratated with cowrie shells, Lahe village, Naga New Year Festival, Sagaing Division, Myanmar (Burma), Asia

Naga men dancing at Grand Finale wearing headdress made of woven cane decorated with wild boar teeth, bear fur, topped with hornbill feather and tiger claw neckband also tiger teeth necklace, ivory armbands and apron decorated with cowrie shells, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga man dancing at Grand Finale wearing headdress of woven cane decorated with wild boar teeth, bear fur, topped with hornbill feather, and tiger claw neckstrap, also tiger teeth necklace and conch shell ear ornament, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga New Year Festival, Naga people walking to festival ground, the men wearing headdress made of woven cane decorated with wildboar teeth, bear fur and topped with hornbill feather also with conch shell ear ornaments, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga tribal groups lined up waiting for the arrival of the General, (the shorts are not part of their traditional clothes but supplied by the govenment, for them to wear in place of their traditional loin cloth), wearing headdresses made of woven cane decorated with wildboar teeth, bear fur and topped with hornbill feather, with tiger jaw necklaces, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga men dancing at Grand Finale wearing headdress made of woven cane decorated with wild boar teeth, Mithan horns (wild cow) and bear fur topped with Hornbill feather with Tiger teeth necklaces and conch shell ear ornament, Lahe village, Naga New Year Festival, Sagaing Division, Myanmar (Burma), Asia

Naga men wearing headdress made of woven cane decorated with wild boar teeth, bear fur, red dyed goats hair topped with hornbill feather, and wearing tiger teeth necklace, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga men dancing at Grand Finale wearing woven cane headdress decorated with wild boar teeth, bear fur and topped with hornbill feather, and tiger teeth necklace, ivory arm bands, bear fur anklets and aprons decorated with cowrie shells, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga tribal groups lined up in traditional clothes waiting for the arrival of the General, wearing headdress made of woven cane decorated with wildboar teeth, bear fur and topped with hornbill feather, with bear teeth necklaces, also wearing aprons decorated with cowrie shells, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga men dancing at Grand Finale wearing headdress made of woven cane decorated with wild boar teeth, Mithan horns (wild cow) and bear fur topped with hornbill feather with tiger teeth necklaces and cowrie shell aprons, Lahe village, Naga New Year Festival, Sagaing Division, Myanmar (Burma), Asia

Naga men dancing at Grand Finale wearing woven cane headdress decorated with wild boar teeth, bear fur and topped with hornbill feather, and tiger teeth necklace, ivory arm bands, bear fur anklets and aprons decorated with cowrie shells, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga tribal groups lined up waiting for the arrival of the General, (the shorts are not part of their traditional clothes but supplied by the govenment, for them to wear in place of their traditional loin cloth), wearing headdresses made of woven cane decorated with wildboar teeth, bear fur and topped with hornbill feather, with tiger jaw necklaces, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga tribal groups lined up in traditional clothes waiting for the arrival of the General, wearing headdress made of woven cane decorated with wildboar teeth, bear fur and topped with hornbill feather, with bear teeth necklaces, also wearing aprons decorated with cowrie shells, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga tribes sitting on bench seating with shields whilst the dignitaries make their speeches, they wear headdress made of woven cane decorated with wild boar teeth, bear fur and topped with s hornbill feather, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Naga man in headdress of woven cane decorated with wild boar's teeth, bear fur and topped with feathers, Naga New Year Festival, Lahe village, Sagaing Division, Myanmar (Burma), Asia

Molting gentoo penguin (Pygoscelis papua) feather detail in Antarctica

Leucistic Antarctic Fur Seal pup, Arctocephalus gazella, amongst normally coloured animals, South Georgia, South Atlantic Ocean. Leucism is a general term for the phenotype resulting from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair or feathers . This results in either the entire surface or patches of the body surface having a lack of cells capable of making pigment.

Leucistic Antarctic Fur Seal pup, Arctocephalus gazella, South Georgia, South Atlantic Ocean. Leucism is a general term for the phenotype resulting from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair or feathers . This results in either the entire body surface or patches of the body surface having a lack of cells capable of making pigment.

Head detail of molting gentoo penguin (Pygoscelis papua) in Antarctica

Gentoo penguin (Pygoscelis papua) molting in Antarctica

Gentoo penguin (Pygoscelis papua) chick in Antarctica

Gentoo penguin (Pygoscelis papua) molting in Antarctica

Gentoo penguin (Pygoscelis papua) molting in Antarctica

Gentoo penguin (Pygoscelis papua) molting in Antarctica

Gentoo penguin (Pygoscelis papua) molting in Antarctica

Caucasian woman wearing headdress in forest

Low angle view of a traditional headdress

Young Hadzabe hunter wearing baboon skin cloak fletches arrow with feathers from a bird shot earlier in the morning near Lake Eyasi, Tanzania

Young Hadzabe hunter wearing baboon skin cloak plucks bird killed in morning hunt and prepares to roast it over an open fire near Lake Eyasi, Tanzania

Red panda fur hats worn by Yi people (ethnic minority) in winter. Lijiang, Yunnan, China. 2002