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.
Of all the tigers, the Siberian's habitat is the furthest north, and it's much harsher than the environment of its counterparts. The harshness of the climate and remoteness of the habitat mean that less people are present and the ecosystem is more intact, a luxury other tiger subspecies do not have. The Siberian tiger is the largest of all the tiger subspecies, weighing in at 660 pounds, and about 10 feet long. Like all tigers, the biggest threat to the Siberian tiger is habitat destruction and hunting.