The lush forests and oceans of planet Earth have been home to some of the largest and most impressive creatures in the history of life. From towering herbivores to fierce predators, these vast animals have left an indelible mark on the planet.
Argentinosaurus is a massive herbivorous dinosaur that lived approximately 90 million years ago in what is now Argentina. It is one of the largest land animals that ever lived on the planet, with estimates suggesting it may have reached lengths of up to 100 feet and weighed up to 100 tons.
Spinosaurus is a genus of theropod dinosaur that lived around 100 to 95 million years ago. It is known for its distinctive sail-like structure on its back and was one of the most enormous known carnivorous dinosaurs, with some estimates putting it at over 15 meters in length and weighing eight metric tons.
Shastasaurus is a prehistoric marine reptile that lived around 210 to 215 million years ago. It is considered one of the most giant known marine reptiles on the planet, with some reaching lengths of up to 20 meters long.
Megalodon, also known as the mega-tooth shark, lived approximately 23 to 3.6 million years ago and was one of the largest predators to swim the oceans. The largest specimens found may have reached around 18 meters long and weighed up to 60 tons.