This one’s easy. Nothing tops the titanic size of the blue whale, the largest animal that ever lived. The largest specimens grow to the length of a basketball court. A blue whale’s heart is as big as a compact car. Its tail flukes are as wide as a soccer goal. Folds in the skin of the whale’s throat allow it to stretch like a pelican’s, ballooning to monstrous proportions as it consumes tiny shrimplike crustaceans called krill – up to four tons (3.6 t) per day! Once found in every ocean except the high Arctic, blue whales were hunted nearly to extinction. The species began to bounce back after hunting was outlawed in the 1960s, but only a tiny fraction their original numbers remains.
Picture Credit : Google