Albertosaurus

       Albertosaurus Dinosaur (al-BURR-to-SORE-us) is the species name for several species of tyrannosaurids that looked similar to Tyrannosaurus rex, but were rather smaller. Albertosaurus Dinosaur also tended to be less massive than T. rex, as fine as its contemporary Daspletosaurus (also a tyrannosaurid of similar length).
Albertosaurus was first discovered by Joseph B.Tyrrell in 1884 which is now displayed in the Royal Tyrrell Museum (now the marquee specimen of the museum). The co-existence of these two animals have lead to the proposal that they were specialized for killing different kinds of prey: Albertosaurus Dinosaur may have went after fleeter prey, like duck-billed dinosaurs and ornithomimids, while Daspletosaurus tackled heavier horned dinosaur.
    
     Like Tyrannosaurus, Albertosaurus had small arms and a enormous head with recurved serrated teeth. These teeth however, are more powerfully curved than those of Tyrannosaurus Dinosaur.The massive head of Albertosaurus was built for strength. It could withstand the shock as Albertosaurus crashed, open-mouthed, into its prey. Huge jaws carried the deadly sharp teeth, and spaces in the skull left room for bulging muscles.

    Unlike Tyrannosaurus, who underwent much evolutionary modify, all discovered specimens of Albertosaurus Dinosaur suggest that they didn't evolve much in over 10 million years, apart from for a trend towards a more slender or gracile form.

   The rear legs of Albertosaurus were powered by large muscles that pulled on the bones to make them move. The ankle and metatarsals worked as part of the leg, giving a longer stride.Albertosaurus Dinosaurs is named after the Canadian province of Alberta.

• Albertosaurus facts:

Name:     Albertosaurus Dinosaur (al-BURR-to-SORE-us)
Size:     63 feet long
Main Facts:     Albertosaurus walks on the two back legs, leaving the front limbs free for catching and holding prey.