منابع مشابه
Alloparenting for chimpanzee twins
In April 2009, a female chimpanzee named Sango, living in a captive group at the Noichi Zoo, Japan, gave birth to dizygotic male-female twin chimpanzees (male: Daiya, female: Sakura). The extent to which adult group members cared for the twins was investigated using a focal animal sampling method targeting six adults (one male) when the twin chimpanzees were two years old. Data were collected f...
متن کاملChimpanzee Autarky
BACKGROUND Economists believe that barter is the ultimate cause of social wealth--and even much of our human culture--yet little is known about the evolution and development of such behavior. It is useful to examine the circumstances under which other species will or will not barter to more fully understand the phenomenon. Chimpanzees (Pan troglodytes) are an interesting test case as they are a...
متن کاملThe Tonkolili Chimpanzee Project in Sierra Leone: Implications for Chimpanzee Conservation Strategies in Anthropogenic Landscapes
In 2012, we observed a small group of chimpanzees (Pan troglodytes verus) living in close proximity to two villages in Central Sierra Leone. At the time of our visit, the population of chimpanzees had been heavily hunted. As we studied the group, we ascertained from the villages that the main reason for the active hunting was resource competition. The chimpanzees were raiding oil palm crops, wh...
متن کاملDialysis for twins
A 32-year-old woman with known stage-4 chronic kidney disease due to lupus nephritis presented with twin pregnancy after in vitro fertilization at a gestational age of 24 weeks + 3 days because of imminent preterm labour. Repeated ultrasound evaluations confirmed intrauterine growth restriction in both twins and polyhydramnios as the cause of imminent preterm labour. After initiation of haemodi...
متن کاملZygosity diagnosis in young twins by questionnaire for twins' mothers and twins' self-reports.
The present study deals with the determination of zygosity in twins of childhood age by simple questionnaire. The subjects were 224 twin pairs and their mothers, consisting of 159 monozygotic and 65 same-sex dizygotic pairs, identified by genetic markers including DNA samples. Mothers of twins responded to 19 questionnaire items dealing with twin similarity in 16 items about physical features a...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2014
ISSN: 2045-2322
DOI: 10.1038/srep06306