Once a caterpillar has disintegrated all of its tissues except for the imaginal discs, those discs use the protein-rich soup all around them to fuel the rapid cell division required to form the wings, antennae, legs, eyes, genitals and all the other features of an adult butterfly or moth.
View full size image. Diving to depths of 328 feet (100 meters) to munch on millions of krill each day, the blue whale takes the prize for the largest creature alive (and ever to exist!). These blue-gray giants extend about 80 to 100 feet (24.4 to 30.5 m) in length and weigh about 400,000 pounds (181,437 kilograms).
Biggest Animal on Earth â Blue Whale. The Blue Whale Is The Largest Animal In The World. It Can Grow Upto 30 Meters Long And Weighs Around 170 Tons (340000 Lbs). Due To Their Massive Size, They Usually Only Swim In Deep Seas And Oceans. The Whale Shark Is The Biggest Fish In The World.