what are the largest creatures on earth
Sebastien Burel/Dreamstime.com. By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons).
Illustration of Titanoboa cerrejonensis by Jason Bourque/ Released by Nature. The biggest snake that ever lived (that we know about) was a massive anaconda-like beast that slithered through steamy tropical rainforests about 60 million years ago feasting on primitive crocodiles, National Geographic News reported today.