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Honeybees link time, color, and scent together when these signals are simultaneously presented in training.
Presenting time and color, or time and scent, as constant signal combinations in training results in very precise orientation. When either one of the combined signals is...
The 2 1/2-month period from weaning to departure from the rookery was studied in northern elephant seal pups at Año Nuevo Island, California. After being weaned at 4 weeks of age, pups fast completely while learning to swim and dive before going to sea in search of food.
When there is no cost to the selfish behavior, selection favors the spread of selfish alleles at offspring loci when the ratio of cost c to the parents' future offspring to benefit b to the selfish offspring is less than 2 for full-sibs and 4 for half-sibs. Selection on the parent favors...
Pigeons brought up in closed cages deflecting the winds to the left or to the right show, on release, a bias of the mean vanishing directions to the left or right of the mean direction of untreated control birds. The results are in full accord with the findings of Baldaccini et al. (1975).
The social system and behavior of a population of Tamias striatus were studied from October 1973 to November 1976 on a 5-ha woodlot in southeastern Ohio. The basic social unit is the solitary individual occupying a single burrow system, but a more complex social unit consisting of mother...
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