Was there any dinosaur that was longer than a blue whale?

An adult Cetiosaurus was as long as a mature male sperm whale, around 52 feet. Other sauropods grew even larger than that. Supersaurus, Argentinosaurus, and Diplodocus were the largest creatures to ever walk the Earth, stretching more than 100 feet from their pencil-like teeth to their sinuous tails. read more

A 100-foot-long blue whale can weigh 150 tons or more, three times heavier than a dinosaur of the same size. Advertisement Much as it pains me to do it, I have to hand the title of “Largest Animal of All Time” to Team Cetacea. read more

Generally, the Argentinosaurus was slightly longer than the blue whale, but in terms of weight, the blue whale is considered to be larger than any other animal that has lived on the planet. Blue whales eat roughly 4 tons of krill each day. Even baby blue whales can weight 3 tons at birth. read more