类型
发表于 2025-3-27 00:24:28
Infants, Mothers, Families, and Strangers,the give-and-take interactions provided by peers (Lewis, Young, Brooks, and Michalson, 1975; Mueller and Vandell, 1979). Furthermore, events outside the mother-infant dyad-like the father’s presence (Lamb, 1979) or supportiveness (Pedersen, 1981)-affect the quality of the interactions shared by infa
Conserve
发表于 2025-3-27 04:53:06
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冥想后
发表于 2025-3-27 07:49:06
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转折点
发表于 2025-3-27 11:00:00
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表示向下
发表于 2025-3-27 14:19:54
Changing Characteristics of the U.S. Family,wis & Feiring, 1978, 1979). This network includes, among others, parents, siblings, relatives, teachers, and peers. For the purposes of the present discussion, we shall focus on that part of the social network known as the family and will concentrate on the changing demographic characteristics of th
谷类
发表于 2025-3-27 19:04:34
Implications of Monogamy for Infant Social Development in Mammals,e of any parental investment by a male. Females both gestate and lactate, and they can typically ensure their offsprings’ survivorship to the point of weaning and independence (Kleiman, 1977). Monogamy has evolved in diverse mammals, and the basis for its evolution appears to have differed in differ
obsolete
发表于 2025-3-27 22:58:47
Biological Contributions to the Maternal Behavior of the Great Apes, I was studying the sexual behavior of gorillas under laboratory conditions and learned that one of the females I had tested was pregnant. Because I saw this as an opportunity to extend my studies of mother—infant relations to a third species of great ape, research on chimpanzees and orangutans alre
Lament
发表于 2025-3-28 02:19:48
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举止粗野的人
发表于 2025-3-28 08:14:47
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平常
发表于 2025-3-28 12:30:10
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