Weights are indicated by their maximum size. The heaviest animals and monsters in the world. Animal Size Comparison

Some studies indicate that the Tyrannosaurus Rex might have stretched to 15m and weighed in at 15 tonnes, that is roughly 70% heavier than current upper estimation.

African buffalo, African bush elephant, American bison, Arctotherium angustidens, Argentinosaurus , Asian elephant, Blue whale, Brachiosaurus, Brown bear, Camel, Columbian mammoth, Dunkleosteus, Elephant bird, Giant eland, Giraffe, Hippopotamus, Leedsichthys, Lion, Megalodon, Megatherium, Moose, Mosasaurus, Ostrich, Palaeoloxodon namadicus, Paraceratherium, Perucetus colossus, Polar bear, Quetzalcoatlus, Rhinoceros, Shastasaurus, Spinosaurus, Tyrannosaurus Rex, Whale shark, Wild water buffalo, Wild yak.

Images by:
26Isabella,
Dmitry Bogdanov, 
Dr. Raju Kasambe,
Greg Hume,
Julian Johnson-Mortimer,
Nobu Tamura,
PJeganathan,
Stegotyranno.


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