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.
The Amur or Siberian tiger is the largest subspecies of the Panthera genus, known to weigh up to 800 lbs (360 kg), while large African lions weigh up to 550 lbs (250 kg). Average weight males is 181 kg for African lion, 221.2 kg for Bengal tiger and 230 kg for Siberian tiger.