Astrophysicists have believed that half the elements which are heavier than iron were formed in gigantic star explosions, known as supernovas. However, there is one little snag with this theory: Astrophysicists have huge problems to make computer simulations of a supernova. âA supernova is extremely complicated.
Siberian Tiger Description. The Siberian Tiger can grow almost 11 feet in length. The males can weigh up to 660 pounds and they are larger than the females. This subspecies of tiger has a skull that is much larger than the others. The skull of the male is quite a bit larger than that of the female.
Length: Head and body length 4.6 - 9.2 (1.4 - 2.8m) feet (tail length 2-3 feet (.6 - .9m). Weight: The Siberian tiger is the largest subspecies and males weigh from around 400-675 lbs (181-306 kg), while the Sumatran tiger, the smallest living subspecies, weighs in from around 220-310 lbs (100-136 kg). Females of all tiger subspecies are smaller than males. Lifespan 10-15 years.