Is Blue Whale Bigger Than Megalodon? A Size Comparison

What creature surpasses the size of a blue whale? According to researchers, the Perucetus colossus, an ancient marine behemoth that lived millions of years ago, measured an astonishing 66 feet (20 meters) in length and weighed up to a staggering 340 metric tonnes. This makes it significantly more massive than today’s largest animal, the blue whale, and even surpasses the size of the largest dinosaurs known to us. It’s no wonder that it earned the name “Perucetus colossus,” which literally translates to “colossal Peruvian whale.” This remarkable discovery, made on August 3, 2023, sheds light on the incredible diversity of Earth’s ancient oceans and the awe-inspiring creatures that once roamed them.

Could a megalodon defeat a blue whale in a battle? While megalodons possessed the physical capabilities to potentially challenge blue whales, it is highly unlikely they would have pursued such a formidable and challenging prey. Blue whales, being approximately 40 feet longer and considerably heavier, can be likened to elephants in the ocean, and a megalodon targeting them would be akin to a lion attempting to take down an elephant.