In comparison with other homeotherms, young recently weaned marine mammals in high latitudes face exceptional energetic demands when foraging and thermoregulating. Lipids are an important source of energy and a major component of insulation that allows them to meet these demands. To examine the role of lipid stores in a high-latitude pinniped, we measured the body composition and thermoregulato...

Together with the avoidance of any negative impact of inbreeding, preservation of genetic variability for life-history traits that could undergo future selective pressure is a major issue in endangered species management programmes. However, most of these programmes ignore that, apart from the direct action of genes on such traits, parents, as contributors of offspring environment, can influenc...

We analyze terminal Pleistocene archaeofaunal diversity trends in the Southern Levant by examining eight Epipaleolithic (ca. 19-12ka) assemblages from the Western Galilee/Mt. Carmel, Israel subregion. We test predictions from a Broad Spectrum Revolution model of the population dynamics of human foragers and their prey. The study emphasizes control over geographic variability and archaeological ...

Sir,?The range of grip of lithotrites is. as Colonel Keegan remarks in his letter published in the July number of the Indian Medical Gazelle, of vital importance to all who may have to use these instruments, and both that letter and Colonel Keegan's article on lithotrites in the April number must have been read with great interest by many Indian Surgeons. For some time past I have been making e...

BACKGROUND Individual variations in the use of the species niche are an important component of diversity in trophic interactions. A challenge in testing consistency of individual foraging strategy is the repeated collection of information on the same individuals. METHODOLOGY/PRINCIPAL FINDINGS The foraging strategies of sympatric fur seals (Arctocephalus gazella and A. tropicalis) were examin...