Behavioral indices of estrus in a group of captive African elephants (Loxodonta africana)
Abstract 10.1002/zoo.20053.abs This study investigated behavioral signals of estrus by systematically monitoring the interactions of one male with four female African elephants housed in a naturalistic outdoor enclosure at Disney’s Animal Kingdom over a period of 11 months. We measured changes in five spatial behaviors and 22 tactile-contact behaviors, as well as changes in serum […]
Male isolation: A behavioral representation of the pheromonal ‘female effect’ in donkey (Equus asinus)
Abstract The appearance of a decisive component of the sexual response to chemosexual signals in the male donkey was investigated through a comparison of the variations in the time-span of the behavioral classes and units for the natural versus induced breeding seasons. The results demonstrate that there are significant variations in the length of the […]
The flehmen response and pseudosuckling in a captive, juvenile Southern sea otter (Enhydra lutris nereis)
A juvenile, female sea otter (Enhydra lutris nereis) was observed in 43 instances of the flehmen response over 19 days from May through July of 2015 at the Oregon Zoo. In all flehmen grimace observations, the juvenile sea otter engaged in nibbling, nosing, or licking the peri-mammary or anogenital areas of a non-lactating, geriatric female […]