The New Encyclopaedia Britannica: Macropaedia : Knowledge in depth |
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Page 15
... young hatch , and the small young spend most of their time on the swimming parents ' backs , which they reach by clambering up the adult's foot . On hatching , the downy young are marked with bold longi- tudinal stripes , though such ...
... young hatch , and the small young spend most of their time on the swimming parents ' backs , which they reach by clambering up the adult's foot . On hatching , the downy young are marked with bold longi- tudinal stripes , though such ...
Page 43
... young learn to tear up their own prey . Parental attention is steadily reduced , from continuous brooding day and night to leaving the feathered young en- tirely alone except for brief feeding visits . The young make their first flights ...
... young learn to tear up their own prey . Parental attention is steadily reduced , from continuous brooding day and night to leaving the feathered young en- tirely alone except for brief feeding visits . The young make their first flights ...
Page 92
... young are downy and hatch with their eyes closed . They remain for 20 to 26 days in their nest before leaving . Most of the food con- sists of large insects brought to the young by both parents . The parents do not clean debris and ...
... young are downy and hatch with their eyes closed . They remain for 20 to 26 days in their nest before leaving . Most of the food con- sists of large insects brought to the young by both parents . The parents do not clean debris and ...
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20th century adult Africa anemia Anseriformes antibodies antigens areas Asia behaviour bill birds blood group bodhisattva body Bolivia bone boxing Brazil Brazilian breeding broadcasting bryophytes Buddha Buddhist building called Caprimulgiformes centimetres central centre China clotting colonial colour countries cuckoos cultural developed disease display early eggs electrons Eocene falconiforms Family feathers feeding feet female flight forest fossil frequency genera genus gruiform hemoglobin important incubation Indian insects islands known legs Mahāyāna major male marrow metres molt monks nest normal North America owls pair Pāli parrots passerines patterns pelecaniforms penguins percent perch period Piciformes pigeons plasma platelets plumage political population produced programs protein radio red cells region river São Paulo sexes short signal South species sporangium structure Suborder tail television Theravada tion tissue toes tradition trees tropical tube usually Vajrayāna wings woodpeckers World young