Science: v.1-v.219Moses King, 1969 |
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Стр. 1030
... chicks behave differently toward their parents than the way they do toward other adults , even at the same place of encounter ( 2 ) , which implies that the chick can recognize its parents . I now re- port an experiment to test the pos ...
... chicks behave differently toward their parents than the way they do toward other adults , even at the same place of encounter ( 2 ) , which implies that the chick can recognize its parents . I now re- port an experiment to test the pos ...
Стр. 1031
... chick was tested with each tape twice , with the speaker placed first at one end and then at the other end of the box . The entire testing session for a chick therefore consisted of four silence - sound sequences . About 12 min- utes ...
... chick was tested with each tape twice , with the speaker placed first at one end and then at the other end of the box . The entire testing session for a chick therefore consisted of four silence - sound sequences . About 12 min- utes ...
Стр. 1032
... chick , particularly if it is outside the family territory , usually orients away from the adult , crouches silently , or flees . Such selective respon- siveness by the chick is evident in the field as early as 6 days after hatching ...
... chick , particularly if it is outside the family territory , usually orients away from the adult , crouches silently , or flees . Such selective respon- siveness by the chick is evident in the field as early as 6 days after hatching ...
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