As children, many of us learn about the wondrous process by which a caterpillar morphs into a butterfly. The story usually begins with a very hungry caterpillar hatching from an egg.
The Largest Animal Ever: The Blue Whale. The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At 30 metres (98 ft) in length and 180 metric tons (200 short tons) or more in weight, it is the largest known animal to have ever existed.
The tallest land animal is the Giraffe. This tall giant can grown up to 20 feet in height, making it the worlds tallest animal. There neck alone can be 6 feet long. These gentle giants habitat is in the wild African Savannah's or great grassy plains.