By Michael Hutchins
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The ebook has been written to cater for the durable wishes of Indian scholars because it is nearly very unlikely for them to selected any unmarried textbook on vertebrates. it really is meant essentially as a textbook for the Honours and the Undergraduate scholars of the Indian Universities. even though, the scholars of upper sessions, the applicants getting ready for varied competetive examinations, and the topic lecturers can also locate it important as a convenient advisor for reference.
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Advances in Physiological Sciences, quantity 31: Sensory body structure of Aquatic decrease Vertebrates covers the lawsuits of the symposia of the twenty eighth overseas Congress of body structure. The ebook provides 17 papers that aspect boost findings within the sensory body structure of aquatic reduce vertebrates. The assurance of the textual content comprises electroreceptors in Indian catfish teleosts; electroreceptive microampulla within the African mudfish Clarias lazera; and species specificity of electrical organ discharges in a sympatric team of gymnotoid fish from Manaus.
Nature documentaries frequently depict animal existence as a grim fight for survival, yet this visually wonderful ebook opens our eyes to another, extra scientifically updated means of the animal country. in additional than 130 impressive photographs, The Exultant Ark celebrates the entire diversity of animal event with dramatic pictures of animal excitement starting from the charismatic and well-known to the imprecise and peculiar.
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Extra info for grzimek's animal life encyclopedia. mammals v
The Ultimate Ungulate Page. com/>. David M. Shackleton, PhD Alton S. 5 ft (15–165 cm) Number of genera, species 7 genera; 23 extant species, 1 recently extinct Habitat Dry to wet grasslands, wetlands, light woodland, savanna, and deserts up to 16,400 ft (5,000 m) Conservation status Recently Extinct: 1 species; Extinct in the Wild: 1 species; Critically Endangered: 2 species; Endangered: 1 species; Lower Risk/Near Threatened: 1 species; Lower Risk/Conservation Dependent: 18 species Distribution Africa and Arabia Evolution and systematics The subfamily Hippotraginae, the grazing antelopes, includes 24 species in 11 genera.
In Europe, such habitat provided abundant forage in the form of grasses, forbs, and browse. These natural pastures included wet meadows and, in the Pyrenees, sub-alpine parklands. In North Africa, they occupied more open steppe habitat. CONSERVATION STATUS Classified as Endangered. While domesticated water buffalo are very abundant and distributed well beyond their natural historic range, there are probably fewer than 4,000 wild water buffalo left in the world, most of which are in Assam, India.
These alpine/tundra steppes are low in plant productivity and so competition with livestock is exacerbated. Hunting by local people for meat and hides continue to contribute to extirpation of wild yaks. Besides ecological factors, interbreeding between domestic yak and wild yak may pose additional threats to wild populations. SIGNIFICANCE TO HUMANS Bubalus bubalis Bos grunniens Teracerus quadricornis 18 First domesticated over 4,000 years ago, they have supported human life throughout this time in harsh high elevation environments.