The huge Brachiosaurus can be seen from far and wide: As high as a house, its long neck juts out above the treetops. What is it doing there anyway? With its sharp teeth, it plucks leaves and twigs from the branches. It s rarely disturbed during mealtimes, and not just because of its size. The prehistoric giant is covered from head to the tip of its tail in fiery red lizard skin. It s a clever way for the Brachiosaurus to keep attackers at bay. But, as a vegetarian, it s not usually in the mood for a fight.