Extreme Forum
Ostalo => Offtopic => Temu započeo: MR.BIG Avgust 17, 2007, 02:01:30 posle podne
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Sinoc gledam na TV i pomislih da je neka 3D fora kad ono ......... bio sam iskreno zaprepasten .....
The Liger
The liger is a cross (a hybrid) between a male lion and a female tiger. It is therefore a member of genus Panthera. As is the case with all hybrid species, there is no scientific name assigned to this animal. A liger looks like a giant lion with diffused stripes. Ligers, unlike lions, like swimming.
Unfortunately, the crossed genes of this species causes it to have health problems, including a high probability of blindness.
A cross between a male tiger and a female lion is called a tigon. According to "The Tiger, Symbol of Freedom" (Nicholas Courtney, editor), rare reports have been made of tigresses mating with lions in the wild.
Large size
Ligers grow much larger than tigers or lions. Some have been estimated to weigh over 500 kg (1100 lb)[1], over twice the size of a male lion. It is believed that this is because female lions transmit a growth-inhibiting gene to their descendants to balance the growth-promoting gene transmitted by male lions. (This gene is due to competitive mating strategies in lions.) A male lion needs to be large to successfully defend the pride from other roaming male lions and pass on his genes; also, in prides with multiple male adult lions, a male's cubs need to be bigger than the competing males for the best chance of survival. Thus, his genes favor larger offspring. A lioness, however, will have up to 5 cubs, and a cub is typically one of many being cared for in a pride with many other lions. As such, it has a relatively high survival rate, and need not be huge as it will not need to look after itself very quickly. Smaller cubs are more easily cared for and fed and are less strain on the pride; hence, the inhibiting gene developed.
Male tigers do not compete for status, and mate in the way that lions do; a tigress only mates with one tiger when in season, so a tiger does not have the same genetic predisposition to produce large competing offspring. Also, a tigress typically has fewer cubs, and those have a much lower survival rate due to the tiger's solitary nature, so being large and growing quickly are an advantage; there is no need for a growth inhibitor. Being the offspring of a male lion and female tiger, the liger inherits the growth-promoting gene unfettered by a growth-inhibiting gene and typically grows larger than either animal; this is called growth dysplasia. Some male ligers grow sparse manes.
Because of the impossibility of a gene being inherited from only females, there is a competing hypothesis. This untested hypothesis holds that the lion's sperm is damaged somehow during fertilization and that a growth-inhibiting gene is typically destroyed. Female tigons and female ligers both possess a tiger X chromosome and a lion X chromosome, yet only the female ligers will grow large, which suggests that either something happens to alter the genes or the cause of the growth dysplasia lies at least partially outside of genetics.
Another possible hypothesis is that the growth dysplasia results from the interaction between lion genes and tiger womb environment. The tiger produces a hormone that sets the fetal liger on a pattern of growth that does not end throughout its life. The hormonal hypothesis is that the cause of the male liger's growth is its sterility — essentially, the male liger remains in the pre-pubertal growth phase. This is not upheld by behavioural evidence - despite being sterile, many male ligers become sexually mature and mate with females. In addition, female ligers also attain great size, weighing approximately 700 lb (320 kg) and reaching 10 feet (3.05 m) tall on average, but are not fertile.
Vocalisation and behaviour
Ligers may exhibit emotional or behavioural conflicts due to their mixed ancestry.
They inherit different or mixed vocabularies (tigers "chuff", lions roar). G Peters included several hybrids (liger, tigon, leopon, liguar) in his "Comparative Investigation of Vocalisation in Several Felids" published in German in Spixiana-Supplement, 1978; (1): 1-206.
They may inherit conflicting behavioural traits from the parent species. Ligers may exhibit conflicts between the social habits of the lion and the solitary habits of the tiger. Their lion heritage wants them to form social groups, but their tiger heritage urges them to be intolerant of company. Opponents of deliberate hybridization say this causes confusion and depression for the animals, especially after sexual maturity. How much of their behaviour is due to conflicting instincts and how much is due to abnormal hormones or the stress of captive conditions is not fully known.
Colours
Ligers have a tiger-like striping pattern on a lion-like tawny background. In addition they may inherit rosettes from the lion parent (lion cubs are rosetted and some adults retain faint markings). These markings may be black, dark brown or sandy. The background colour may be correspondingly tawny, sandy or golden. In common with tigers, their under parts are paler. The actual pattern and colour depends on which subspecies the parents were and on the way in which the genes interact in the offspring.
White tigers have been crossed with lions to produce "white" (actually pale golden) ligers. In theory white tigers could be crossed with white lions to produce white, very pale or even stripeless ligers. A black liger would require both a melanistic tiger and a melanistic lion as parents. Very few melanistic tigers have ever been recorded, most being due to excessive markings (pseudo-melanism or abundism) rather than true melanism. No reports of black lions have ever been substantiated. The blue or Maltese tiger is now unlikely to exist, making gray or blue ligers an impossibility. It is not impossible for a liger to be white, but it is very rare.
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bas bi bilo zgodnoimati ovu macikcu kuci.....
djes ti veliki ??..a coveka..uzme prvih 50 000 eu u zivotu i ko vas grebe staro drustvo.
dizem sidro zbogm vidro
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50.000 je malo brate .......
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:)
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:)
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uuu koja macaa... :shock:
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:shock:
jos kljove da ima pa bi bio pravi smilodon fatalis
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Jel se zna ko je teta na slici: liger1_45 ona sto je gore?? :twisted:
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Samo nek se oni maze ovako sa njim.Kad maca ogladni bice njima mazenja :D
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Ja bih jednu cica macu kao na slici liger_45 ... ;)
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Gledao sam ovo sino...Nverovatno!Mada kazu da se lavgar ne bi bas snasao u divljini,tj. da ne bi bas dugo opstao u takvom okruzenju...Ali sto se snage io velicine tice-tu je neprevazidjen
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Uuu jbt koliki je! :shock: Nisam znao da to postoji.
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http://www.metacafe.com/watch/250400/liger/ (http://www.metacafe.com/watch/250400/liger/)
http://www.youtube.com/watch?v=mqwLmkd8fl8&mode=related&search= (http://www.youtube.com/watch?v=mqwLmkd8fl8&mode=related&search=)
http://www.youtube.com/watch?v=191cPadaxCk (http://www.youtube.com/watch?v=191cPadaxCk)
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ISKRENO MENI TA ZVOTINJA BAS NESTO POSEBNO NE FASCINIRA SEM ETO STO JE VECI OD LAVA I OD TIGRA ISKRENO LAV I TIGAR KAO POJEDINAC MI PUNO LJEPSE I BOLJE IZGLEDAJU OVO MI JE BEZVEZE
UOSTALOM KO ZNA MOZDA BI BOLJE IZGLEDO DA MU SE BACI NEKA DJETICA DA SE TA KOZURINA MALO UTEGNE AKO NE DJETA BAR DA PADNE NEKI SKIN LIFTING
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Kako su krenuli ukrstiće Ronija i Lendu Murrey :D