Introduce the appearance characteristics of dinosaurs.

Dinosaur life habits: The plants that herbivorous dinosaurs can eat are limited by their height, so some small herbivorous dinosaurs will stand on their hind legs in order to eat tall plant leaves. Carnivorous dinosaurs ate herbivorous dinosaurs and other animals. Various dinosaurs' different ways of foraging will also be reflected in their teeth.

Dinosaurs refer to Triceratops, modern birds and Liang Long's closest ancestors and all their descendants. For the convenience of research, dinosaurs can be divided into birds and non-bird dinosaurs. Among them, non-bird dinosaurs only lived in Mesozoic (Triassic, Jurassic and Cretaceous) and were all extinct 65 million years ago. This entry mainly introduces non-bird dinosaurs. The vigorous limbs, long tail and huge body are the portrayal of some non-bird dinosaurs. They mainly inhabit woodland or open areas in lakeshore plains (or coastal plains).

184 1 year, when British scientist richard owen studied several lizard-like bone fossils, he thought they were left by some prehistoric animals and named them dinosaurs, which means "terrible lizards".

Skeletal characteristics

Strength is the most important requirement for a huge herbivorous dinosaur. Their leg bones are big and strong enough to support their huge bodies. At the same time, they also evolved a clever structure to reduce the weight of other bones without causing strength attenuation.

Those smaller and faster-moving dinosaurs evolved a feature that can also be seen in modern animals: thin-walled long bones. This kind of bone is like a hollow tube, with a thin outer wall and a much lighter bone marrow in the middle. Fast-moving herbivorous dinosaurs, such as the oak dragon, had this thin-walled long bone. We can assume that this skeleton is to lose weight in order to get faster speed when avoiding natural enemies.

Somatotype characteristics

Dinosaurs as a whole are very big. According to dinosaur standards, lizard's foot is one of the behemoths. In the long dinosaur era, even the smallest sauropods were larger than other animals in their habitats, while the largest sauropods were several grades larger than any animals that appeared on the surface.