Two baby raccoon (Procyon lotor) in a tree, in captivity, Sandstone, Minnesota, United States of America, North America

A hiker in a hollow tree trunk, Cathedral Grove, MacMillan Provincial Park, Vancouver Island, British Columbia, Canada, North America

Golden brushtail possum on a tree, the light color is a genetic mutation of common Australian possums that live only in Tasmania, Australia, Pacific

Adult Spix's night monkeys (Aotus vociferans), in Nauta Cano, Amazon River Basin, Iquitos, Peru, South America

Adult Spix's night monkeys (Aotus vociferans), in Pahuachiro Creek, Amazon River Basin, Iquitos, Peru, South America

Wallace's Hut, Bogong High Plains, Apline National Park, Victoria, Australia, Pacific

Old hollow boab tree, once used as aboriginal prison, outside Derby, Kimberley, Western Australia, Australia, Pacific

Young Tawny Owl chicks in the nest in a hollow tree in Ambleside, Cumbria, England, United Kingdom, Europe

Omo river in Ethiopia

Raccoon (Procyon lotor) in a hollow tree trunk in an enclosure, ZOOM-Erlebniswelt, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

Chief Goes To War, Chief Hollow Horn Bear, two chiefs with feather headdresses, Sioux, North American Indian people, after a painting by F.A.Rinehart, 1899, Historic, digitally restored reproduction of an original from the period

Red fox (Vulpes vulpes) with prey in a hollow tree trunk

Two raccoons (Procyon lotor) in a hollow tree trunk

Raccoon (Procyon lotor), fawn looking out of its tree hollow, Hesse, Germany, Europe

Young raccoon (Procyon lotor) looking out of a tree hollow, Hesse, Germany, Europe

Raccoon (Procyon lotor), young and fawn looking out of their tree den, Hesse, Germany, Europe

Gray foxes (Urocyon cinereoargenteus), two young animals looking curiously out of a hollow tree trunk, Pine County, Minnesota, USA, North America

Gray fox (Urocyon cinereoargenteus), young animal sitting in a hollow tree trunk, Pine County, Minnesota, USA, North America

American Mink (Mustela vison), young animal in hollow tree trunk, Pine County, Minnesota, USA, North America

High angle view of houses in a village, Burke Hollow, Burke, Vermont, USA

Hollowed Out Cedar Logs Transport Hot Spring Water Into Hollowed Out Cedar Log Tubs, Bagby Hot Springs, Estacada, Oregon, Usa

Hollowed Out Cedar Logs Transport Hot Spring Water Into Hollowed Out Cedar Log Tubs, Bagby Hot Springs, Estacada, Oregon, Usa

Western Screech Owl (Otus kennicottii) in hollow cottonwood.

Raccoon young (Procyon lotor) in tree hollow. Spring. Rocky Mountains.

COLOMBIA Choco Embera Indigenous People Embera man using axe or adze . to hollow out dug out canoe from large felled hardwood tree.Once completed canoe is dragged through forest to riverside home where final shaping takes place Pacific coastal region boat canoa tribe American Colombian Colombia Hispanic Indegent Latin America Latino Male Men Guy South America Pacific coastal region boat piragua tribe American Colombian Columbia Hispanic Indegent Latin America Latino Male Men Guy South America Male Man Guy One individual Solo Lone Solitary 1 Single unitary

Two leopard cubs, Panthera pardus, alert, lying the hollow of a dead tree, mother leopard lying in background, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

Anderson Hollow Lighthouse by pond at dusk, New Brunswick, Canada

Little owl (Athena noctua) perched inside an hollow oak tree, England

Fat Dormice and young in their nest in a hollow tree-France

Fat Dormice and young in their nest in a hollow tree-France

Tawny Owl in hollow tree, Ardennes Belgium

Fat Dormice in their nest in a hollow tree, France