Search the Article Database:

Search our library of articles, papers and other published materials. You can use keywords or boolean-style search:

Cannibalism and post-partum return to oestrus of a female Cape giraffe

Although an instance of meat-scavenging by giraffe in captivity has been recorded (Ogrizek, 1954), such behaviour has never been witnessed in the wild. Two reports pertaining to carcass-chewing by free-living giraffe actually involved the partially-digested stomach contents and skeletal parts of eland remains (Nesbit Evans, 1970), or specifically referred to the bones, hooves and drying skin of a 5-day old Grant’s gazelle skeleton (Western, 1971). The latter observations, should therefore, be categorized as osteophagia, a phenomenon which has been documented

View Details + Download

Flehmen, Osteophagia, and Other Behaviors of Giraffes (Giraffa giraffa angolensis): Vomeronasal Organ Adaptation

The size of adult male giraffes (Giraffa giraffa angolensis) far exceeds the size of the females. At the Namutoni waterholes in Etosha National Park, bulls were seen many times each day screening adult females for their pending sexual receptivity by provoking them to urinate; this mainly involved sniffing their genitalia. If the female accedes to the male’s invitation, she widens her hindleg stance, braces her body, and then urinates, usually for at least five seconds. The male places his muzzle

View Details + Download

Giraffe chewing a Grant’s gazelle carcass

Nesbit Evans (1970) observed the Rothschild’s giraffe (Girajfa camelopardalis rothschildi Lydekker) eating the stomach contents of an eland carcass and picking up the lower jaw, which it did not chew. She mentions that osteophagia is fairly commos in domestic stock suffering from phosphorus deficiency, but is unrecorded for the giraffe. The following record of the Maasai giraffe (Girajfa camelopardalis tippelskirchi Matschie) chewing bones was observed in Maasai Amboseli Game Reserve.  

View Details + Download

Can osteophagia provide giraffes with phosphorus and calcium?

The daily requirement for calcium and phosphorus by giraffes to sustain the growth and maintenance of their skeletons is large. The source of sufficient calcium is browse. The source of necessary phosphorus is obscure, but it could be osteophagia, a frequently observed behaviour in giraffes. We have assessed whether bone ingested as a result of osteophagia can be digested in the rumen. Bone samples from cancellous (cervical vertebrae) and dense bones (metacarpal shaft) were immersed in the rumens of five

View Details + Download

Osteophagia and bone modifications by giraffe and other large ungulates

Ungulates often gnaw on animal bones, antlers, horns, and ivory in order to maintain certain nutritional requirements. The resulting modifications to bones and other skeletal elements have been variously described and reported, but are largely absent from most taphonomic reference works. Previous accounts of such gnawing behaviors have been restricted to smaller ungulates. Here we provide detailed description of large ungulates gnawing on bones from similarly sized animals, namely giraffe, camel, and cattle, from Africa, Australia, and North America. Large

View Details + Download

Giraffe Pica Behavior And Pathology As Indicators Of Nutritional Stress

Geophagia and osteophagia were a common feature of the feeding routine of the southern giraffe (Giraffa camelopardalis giraffa) during the months from April to November. Osteophagia occurred at approximately the same frequency in adults and sub-adults. However, geophagia was primarily exhibited by sub-adult giraffe. The acts of geophagia and osteophagia were carried out by an identical set of search, accusative, and gratification behaviors. Kidney stones and associated cortical and medullary lesions were observed in 29 percent of the 75 adult

View Details + Download