Photograph by Joel Sartore, National Geographic Photo ArkAnimals Photo ArkSloth BearCommon Name: Sloth Bear Scientific Name: Melursus ursinus Type: Mammals Diet: Omnivore Group Name: Solitary Average Life Span In Captivity: Up to 40 years Size: 5 to 6 feet; tail: 2.7 to 4.7 inches Weight: ...
National Geographic 总是能提供我们令人震撼的影像,从大自然、动物,到人文,纪录了这个地球上不同地区、不同物种、不同文化的生存之美。 《国家地理儿童百科》是外语教学与研究出版社引进“国家地理”的儿童英语系列读物,分为入门级、提高级和流利级三套,适用于4-16岁孩子,读物涉及了物理科学、地球;太空科学、生命...
“Cooke writes with a firm sense of authority and a loving irreverence that lifts these pages far above most real-life animal books and should make the inevitable umpteenth readaloud easy to bear” Publishers Weekly Buy me USA Buy me UK THE TRUTH ABOUT ANIMALS This “sure-fire summer win...
It can reach size of a large bear and weighs as much as 9 kg (20 lb). However the West Indian sloth hardly grows greater than a black bear. Their teeth seem more like rounded cones. They have a 6 – 7 cm long tail but the length differs in some species. Sloths have adapted to ...
Stelmock J, Dean FC (1986) Brown bear activity and habitat use, Denali National Park–1980. Int Conf Bear Res Manag 6:155–167. Google Scholar Suárez MB, Passey BH (2014) Assessment of the clumped isotope composition of fossil bone carbonate as a recorder of subsurface temperatures. Geoc...