Thursday, December 15, 2011

How Did Wolves Become Dogs?


Science Fiction: This primitive wolf closely resembled the modern southern wolf populations of the Arabian Peninsula and South Asia, which were once distributed in Europe in the early Quaternary glaciation until about 500000 years ago (see Subspecies).[4] C. mosbachensis evolved in the direction of Canis lupus, and recolonised North America in the late Rancholabrean era. Real Science: They are also capable of running at speeds of 56--64 km (34--38 miles) per hour, and can continue running for more than 20 minutes, though not necessarily at that speed.[32] In cold climates, wolves can reduce the flow of blood near their skin to conserve body heat. The warmth of the footpads is regulated independently of the rest of the body, and is maintained at just above tissue-freezing point where the pads come in contact with ice and snow.[33] The intestines of adult wolves measure 460--575 cm, the ratio to body length being 4.13--4.62.[34] The stomach can hold 7--9 kg (15--20 lb) of food[24] and up to 7.5 litres (8 US qt) of water.[35] The liver is relatively large, weighing 0.7--1.9 kg (1.6--4.2 lb) in males and 0.68--0.82 kg (1.5--1.8 lb) in females.[24]

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