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MATERIALS AND METHODS
Focal Animal Observations
3 other sections not shown
allomothering Altmann analyses baboons behavior bottlenose dolphins calf ages Calf positioned calf survival calves of multiparous calves of primiparous Cameron critical period dependent calves df=l differences in maternal distance DOLPHINS TURSIOPS TRUNCATUS dorsal fin echelon position experienced females experienced mothers feral horses fission-fusion society focal dolphin focal dyad function hypothesis intermediate experience learning to parent logistic regression matched pairs signed maternal age maternal investment mother and calf mother has given mother's experience level multiparous females multiparous mothers neonates newborn surfaces newborns of multiparous newborns of primiparous nulliparous number of calves observational learning organochlorine pairs signed rank parental investment Points represent proportion predation protection primiparous and multiparous primiparous females surfaced primiparous mothers proximity reproductive histories reproductive success Sarasota Bay SDRP second month signed rank test sub-group sizes surface synchronously synchronous surfacings targeted reproductive effort Terrie Williams total surfacings Trivers Tursiops sp Tursiops truncatus vervet monkeys Wilcoxon matched pairs zoological park