The evolution of hominid behavioral ontogeny can be reconstructed using two lines of evidence: first, comparative neontological data on the behavior and development of living hominoid species (humans and the great apes), and second, comparative paleontological and archaeological evidence associated with fossil hominids. (Although behavior rarely fossilizes, it can leave significant traces.)1 In...

An ecological-evolutionary classification of Amazonian triatomines is proposed based on a revision of their main contemporary biogeographical patterns. Truly Amazonian triatomines include the Rhodniini, the Cavernicolini, and perhaps Eratyrus and some Bolboderini. The tribe Rhodniini comprises two major lineages (pictipes and robustus). The former gave rise to trans-Andean (pallescens) and Amaz...

The extinct moa of New Zealand included three families (Megalapterygidae; Dinornithidae; Emeidae) of flightless palaeognath bird, ranging in mass from <15 kg to >200 kg. They are perceived to have evolved extremely robust leg bones, yet current estimates of body mass have very wide confidence intervals. Without reliable estimators of mass, the extent to which dinornithid and emeid hindlimbs wer...

INTRODUCTION Incidental discovery or diagnosis of Rheumatoid Arthritis where the patient remains blissfully unaware of his affection is a rare occurrence. CASE DESCRIPTION We present the case of a telephone wireman in whom Rheumatoid Arthritis neither affected his activities of daily living nor caused any deformity to develop. It remained asymptomatic till its incidental discovery during his ...

STOCK DEFINITION AND GEOGRAPHIC RANGE The gray whale formerly occurred in the North Atlantic Ocean (Fraser 1970), but is currently only found in the North Pacific (Rice et al. 1984). The following information was considered in classifying stock structure of gray whales based on the Dizon et al. (1992) phylogeographic approach: 1) Distributional data: isolated geographic distribution in the Nort...

Molecular data were used to examine the differentiation between western and eastern gray whale (Eschrichtius robustus) populations. Control region sequences generated from samples collected in Pacific (n = 45) 120). There 36 unique haplotypes identified. Ten represented samples, 33 samples. Seven of these shared populations, leaving three that only seen 26 eastern. Although there no fixed (diag...

Introduced hosts populations may benefit of an "enemy release" through impoverishment of parasite communities made of both few imported species and few acquired local ones. Moreover, closely related competing native hosts can be affected by acquiring introduced taxa (spillover) and by increased transmission risk of native parasites (spillback). We determined the macroparasite fauna of invasive ...

Hypoechinorhynchus robustus sp. n. is described from Notolabrus parilus (Richardson) (Labridae) from Pt Peron, Western Australia. It has a proboscis with 30 hooks arranged in ten longitudinal rows: 5 rows of a small apical spine, a large anterior hook and a small posterior spine, 5 rows of a large anterior hook, a middle spine and a posterior spine. The new species is distinguished from other s...