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 […]
Chemical immobilisation of giraffe to facilitate short procedures
Objective: To describe the chemical immobilisation of giraffe (Giraffa camelopardalis) for short procedures at Taronga Zoo. Design: A clinical report. Animals: Five giraffe. Procedure: The weight of each animal was determined and pre-immobilisation fasting, careful preparation of the site, and planning were carried out prior to each procedure. Etorphine and acetylpromazine were used as the […]
Observations on puberty and pregnancy in female giraffe (giraffa camelopardalis)
The age at sexual maturity in the female giraffe G. camelopardalis was found to be 3 years 10 months when in captivity and 4 years 8 months in wild animals. The mean calving interval was 19.9 months for wild animals, and 21.5 months for captives. Post partum intervals as short as 19, 23 and 27 […]
Scene From Above: Retinal Ganglion Cell Topography and Spatial Resolving Power in the Giraffe (Giraffa camelopardalis)
The giraffe (Giraffa camelopardalis) is a browser that uses its extensible tongue to selectively collect leaves during foraging. As the tallest extant terrestrial mammal, its elevated head height provides panoramic surveillance of the environment. These aspects of the giraffe’s ecology and phenotype suggest that vision is of prime importance. Using Nissl-stained retinal wholemounts and stereological […]