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.
Colossal Kitties. Tigers are the biggest cats in the world, and Amur tigers are the biggest subspecies (type) of tigers. They stand about three feet tall at the shoulder. This isn't quite as tall as a lion, but Amur tigers are longer and usually weigh more. Adult males can grow up to 11 feet long and weigh over 600 pounds; females are smaller -- up to nine feet long and about 370 pounds. Now those are some big kitties!