Large scale changes to the natural environment, due to both climate change and direct
human activities (eg, urbanization), pose a great risk to biodiversity. As this realization has …

Rest is a state of adaptive inactivity that increases the efficiency of activity by regulating its
timing and reducing energy use when activity is not beneficial. Thus, animals can go without …

Sex steroids are pervasive in mammals and evolutionarily conserved, but differences in the
nuances of endocrine profiles characterize distinct species. Two sex steroids, testosterone …

Historically, reproductive health in wildlife species has been evaluated primarily via
immunoassay detection of fecal and urinary steroid hormone metabolites. This combination …

Understanding the reproductive biology of the roan antelope (Hippotragus equinus)(É.
Geoffroy Saint-Hilaire, 1803) is crucial to optimise breeding success in captive breeding …

Temperate living primates cope with a variety of environmental stressors, which may vary by
body mass. We studied two sympatric galagos, the thick-tailed greater galago, Otolemur …

Among continental Africa's endemic primates, the bushbabies or galagos (family Galagidae,
or Galonigidae, Groves, 2001) have been described as the most successful radiation of …

Urbanisation is an important factor driving species and biodiversity decline. Although habitat
alterations can be detrimental for species, studies have shown that many diurnal primates …

The southern ground‐hornbill (SGH) is a cooperatively breeding bird endemic to eastern
and southern Africa, but is endangered in its southern distributional range. The national …

Gonadal hormones play a central role in reproductive function and success. As such,
quantifying reproductive hormones non-invasively in threatened, vulnerable and …