the biggest land mammal ever
For over a century, Paraceratherium â a 26-foot-long, 15 ton, hornless rhino â has been cited as the biggest of the big beasts. But, according to a new paper by Asier Larramendi, ancient elephants are in close competition for the title of the largest mammals to ever walk the Earth. Such contests rely on how theyâre measured, of course. Part of what makes Paraceratherium seem so large is its elongated neck.