The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 80
... present ; Old World , now confined to Africa . Living giraffes long- necked and long - legged ; the okapi more compact . Giraffes may be up to 5.5 m ( 18 ft ) in total height . Extinct relatives including the large , short - legged ...
... present ; Old World , now confined to Africa . Living giraffes long- necked and long - legged ; the okapi more compact . Giraffes may be up to 5.5 m ( 18 ft ) in total height . Extinct relatives including the large , short - legged ...
Page 318
... present atmo- spheric levels of O2 Scope and. Content and Progress of Earth's Atmospheric Evolution approximate years before present X 10-9 ( not to scale ) 0.02 0.07 0.10 0.23 0.30 0.38 0.40 0.64 1.8-2.0 > 3.2 3.5-3.6 4.6-4.8 carbon ...
... present atmo- spheric levels of O2 Scope and. Content and Progress of Earth's Atmospheric Evolution approximate years before present X 10-9 ( not to scale ) 0.02 0.07 0.10 0.23 0.30 0.38 0.40 0.64 1.8-2.0 > 3.2 3.5-3.6 4.6-4.8 carbon ...
Page 1061
... present ; South America . Ostrich - like cursorial birds with very small tails and no aftershaft on the feathers . Sexes alike . Length 90-130 cm . Order Struthioniformes ( ostrich ) . Lower Pliocene to pres- ent ( the Eocene ...
... present ; South America . Ostrich - like cursorial birds with very small tails and no aftershaft on the feathers . Sexes alike . Length 90-130 cm . Order Struthioniformes ( ostrich ) . Lower Pliocene to pres- ent ( the Eocene ...
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aesthetic ancient appear areas arms artists aschelminths Asia Asian associated atmosphere atoms become body called Central centre century changes China continued countries criticism culture early Earth East economic effect electrons elements energy example exist field forces France function Games groups head human important increase India individual industrial influence Italy Japan known later less light lines living lower major mass means ment metres military mountain nature North objects observations occur organization original painting particular percent period physical Pleistocene political population position possible practice present produced radiation range region relatively remains represent result schools social society sometimes sources South Soviet species stars structure style surface temperature theory tion traditional types United usually various West western