منابع مشابه
Durer’s Rhinoceros
Since the introduction of computers, there has been a desire to improve the appearance of computer generated objects in virtual spaces and to be able to display the objects within complex scenes exactly as they appear in reality. This is a straightforward process for artists who through the medium of paint or silver halide are able to directly observe from nature and interpret and capture the w...
متن کاملFollicular, endocrine and behavioural dynamics of the Indian rhinoceros (Rhinoceros unicornis) oestrous cycle.
Longitudinal ultrasound, behaviour and endocrine evaluations were conducted, over 14 to 18 months, in two young female Indian rhinoceroses (Rhinoceros unicornis) to characterize the oestrous cycle. Both females showed the same pattern of follicular development producing a large follicle (10-12 cm diameter) on one of the ovaries that persisted for 8.5 +/- 4.68 days before spontaneously ovulating...
متن کاملPrimary structure of an adipokinetic neuropeptide from the rhinoceros beetle, Oryctes rhinoceros L (Coleoptera: Dynastidae)
BACKGROUND Neuropeptides play an important role in cellular communication in vertebrates. This is also true for insects in which many physiological, developmental and behavioral processes are affected by neuropeptides produced in neurosecretory cells of the retrocerebral complex. Small neuropeptides of the adipokinetic hormone/red pigment concentrating hormone family (AKH/RPCH) are one of the i...
متن کاملMorphology of rhinoceros platelets.
Basic hematological information about rhinoceros species is limited. In this study, we have determined the platelet counts and described the platelet morphology of free-living white (Ceratotherium simum) and black (Diceros bicornis) rhinoceros using light and electron microscopy. The platelet counts of the two species were similar, but there were significant differences in platelet size as well...
متن کاملThe complete mitochondrial DNA sequence of the white rhinoceros, Ceratotherium simum, and comparison with the mtDNA sequence of the Indian rhinoceros, Rhinoceros unicornis.
The complete nucleotide sequence of the mitochondrial genome of the white rhinoceros, Ceratotherium simum, was determined. The length of the reported sequence is 16,832 nucleotides. This length can vary, however, due to pronounced heteroplasmy caused by differing numbers of a repetitive motif (5'-CG-CATATACA-3') in the control region. The 16,832 nucleotide sequence presented here is the longest...
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ژورنال
عنوان ژورنال: Oryx
سال: 1988
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300022407