Argentinosaurus, a large herbivorous dinosaur, lived roughly 90 million years in the past in Argentina, reaching lengths of as much as 100 ft and weighing round 100 tons.

Spinosaurus, a semi-aquatic theropod dinosaur from the late Cretaceous Interval, is estimated to have been over 15 meters lengthy and weighed 8 metric tons, that includes variations for swimming.

Shastasaurus, a prehistoric marine reptile from the late Triassic interval, may attain lengths of as much as 20 meters, making it comparable in dimension to fashionable blue whales.

Megalodon, an enormous prehistoric shark that lived round 23 to three.6 million years in the past, might have reached lengths of 18 meters and weighed as much as 60 tons, with a chew power estimated between 10 and 18 tons.

Livyatan, a predatory whale from the Miocene epoch, may develop as much as 18 meters lengthy and weighed between 50 to 60 tons, that includes giant serrated tooth suited to looking marine mammals.

Paraceratherium, a hornless rhinoceros-like mammal from the Oligocene epoch, weighed as much as 18 metric tons and stood over 5.5 meters tall on the shoulder.

Blue whales, the biggest animals to have ever lived, can develop as much as 30.5 meters in size and weigh as a lot as 200 tons, with a coronary heart the dimensions of a small automotive and a lifespan of 80 to 90 years.