Thứ Sáu, 3 tháng 8, 2012

Liger

 

The Life of Animals | Liger | Liger is the largest cat in the known world. Imprinted genes may be a factor that contributes to the great Liger. Other large hybrid cats can reach a similar size; litigon, a rare hybrid of a male lion and a female tiglon, about the same size as the liger, a male name Cubanacan (Alipore Zoo in India), reaching 363 kg (800 lbs) extreme rarity of these second-generation hybrids may make it difficult to determine if they are more or less, on average, than the Liger.


Male ligers also have the same levels of testosterone, on average, an adult male lion, but azoospermia according to Haldane's rule. In addition, female ligers can achieve great size, weighing about 320 kilograms (705 pounds) and reached 3.05 m (10 ft) long, on average, and are often fertile. Shasta, ligress (female liger) was born Hogle Zoo in Salt Lake City, May 14, 1948 and died in 1972 at age 24. 1973 Guinness World Records said the 18-year-old, 798 kg (lb 1759) to male life liger zoo in Bloemfontein, South Africa, in 1888 (not exactly like the zoo was opened in 1920), (c 'is a request Liger was 756 kg. and the year was actually 1953).


Fertility of female big cat hybrids is well documented in a number of different hybrids. This is in agreement with Haldane's rule: in hybrids of animals, sex is determined by sex chromosomes, if there is no sex, rare or sterile, is the heterogametic sex (the one with two different sex chromosomes eg X and Y) . Ligers tigers have as an alternative model, which is very weak and the lion as a reddish-brown background. In addition, they may inherit rosettes from the lion parent (lion cubs rosette and some adults retain faint markings).


White tigers have been crossed with lions to produce "white" (actually pale golden) ligers. In theory white tigers could be overcome with white lions to produce white ligers very clear, and even stripeless. There are ligers blacks. Like a blue or Maltese Tiger is probably no longer exists, gray or blue ligers are extremely unlikely. Several AZA zoos are reported to have ligers
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