Why were some dinosaurs so big?

dinosaurs were the dominant species on Earth for almost 150 million years, and they were huge. Some of the largest dinosaurs ever to walk the Earth were up to 20 feet long and weighed more than a small locomotive. Not only were they large. The skeletons of many dinosaurs show evidence of adaptations for running at high speeds, such as long, bowed legs and enlarged, bone-crushing feet. And although the teeth of some carnivorous dinosaurs were incredibly sharp, many had toothless snouts and

Why were some dinosaurs so big in the Jurassic era?

dinosaurs were the dominant species on the Earth during the Jurassic period, which spanned from about 196 to 145 million years ago. While earlier dinosaurs were small, some species that lived during the Jurassic had an average weight of more than 10 tons. For comparison, a modern elephant weighs about 6 tons. Most of the large dinosaurs were plant eaters, such as horned dinosaurs and hadrosaurs. Other dinosaurs, known as the theropods, were meat-eating.

Why were some dinosaurs so big in the Cretaceous era?

Dinosaurs weren’t the only giants roaming the earth. The biggest terrestrial vertebrates on the continents of the Cretaceous were the mammals, whose ancestors had become small- to medium-sized hoofed animals. The largest of these were the hippos, whose bodies were about the size of a car. Most of the other large hoofed animals of the age were relatives of modern-day elephants, such as the mammoths. And while the dinosaurs were the top predators on the

Why were some dinosaurs so big in real life?

Dinosaurs were the top predators of their time, and in order to be successful top predators, they had to be large. Adult specimens of some dinosaur species were the size of large whales. The largest dinosaurs, the sauropods, had extremely long necks, legs and tails. All these body parts were adapted to their weight to move across rough, uneven surfaces. Larger animals need a bigger digestive system, so a larger body allows for more food storage.

Why were some dinosaurs so big in the Triassic era?

The Triassic is the time period between 231 and 199 million years ago, right before the mass extinction of many species. During this time, some dinosaurs’ bodies grew larger than ever before. While most dinosaurs were already quite large, some of the largest species such as the brachiosaurus, spinosaurus, and ankylosaurus became even more intimidating.