How did the dinosaurs perish, how did the dinosaurs perish

How did dinosaurs become extinct?

There are several theories, the most famous being that an asteroid (meteorite) collided with the Earth. But I think the main reason is that dinosaurs were too large to survive without external intervention, but when they encounter adverse factors such as meteorite collisions and rising temperatures, they appear vulnerable. For example, small mammals survived the disaster, while large dinosaurs did not, and that's why.

Dinosaurs were a type of reptile from the Mesozoic era (100 million years ago), with vigorous limbs, long tails and huge bodies that portrayed most dinosaurs. They mainly inhabit woodlands or open areas on lakeshore plains (or coastal plains).

The dinosaurs suddenly disappeared at the end of the Cretaceous period 65 million years ago, becoming a mystery in the history of the evolution of life on Earth, which is still unsolved. All of the earth's past creatures are recorded in fossils. In the strata of the Mesozoic era, many dinosaur fossils have been found.

A large number of bones can be seen in a variety of shapes. However, in the Cenozoic strata that followed, there were no fossils of non-avian dinosaurs at all, which suggests that non-avian dinosaurs became extinct together during the Mesozoic Era, and that only birds remain today, which most scientists recognize"Birds belong to dinosaurs"said. There are many types of dinosaurs, and their body shape and habits also vary greatly, with the largest fragile dinosaur being more than 50 meters long, while the smallest hummingbird may be less than 10 centimeters.

In terms of eating habits, there are docile herbivores and ferocious meat eaters, as well as omnivorous dinosaurs that eat both meat and vegetables. Ruled the Earth for about 80 million years (100 million years ago --- 65 million years ago).

Dinosaurs were diverse dominant vertebrates of the Mesozoic era, most of which belonged to terrestrial reptiles. The reason why vertebrates and not reptiles are Dinosaurs were once classified as reptiles, but they did not fit one of the basic characteristics of reptiles: the prostrate way of walking, and the cold-blooded nature that has always been questioned.

Dinosaurs dominated the world's terrestrial ecosystems for more than 160 million years. Dinosaurs first appeared in the Triassic period 230 million years ago and died out at the end of the Cretaceous period, which occurred about 65 million years ago in the late Cretaceous period.

Extinction events. The term dinosaur comes from the Greek words deinos (meaning terror) and saurosc (meaning lizard or reptile). Dinosaurs (excluding birds) were a group of land-dwelling master reptiles, with limbs erect under the body rather than stretched out on either side, they appeared in the Late Triassic Carney Order, various dinosaurs rapidly evolved different specialized characteristics, developed different body sizes, occupied different ecological niches of the Saurus, and continued to survive until the Late Cretaceous Maastricht.

The reason for the extinction of dinosaurs, as the overlord of the earth, is that dinosaurs did not adapt to changes in the environment.

Dinosaurs lived about 100 million to 65 million years ago, and most scholars believe that changes in the earth's environment (mainly climate cooling) caused dinosaurs to be unable to endure the cold, leading to extinction. Other scholars believe that an outer planet hit the Earth, causing a sharp decline in some flora and fauna, and dinosaurs starved to death because they could not have enough to eat.

Either way, the reason is that dinosaurs could not continue their offspring, resulting in extinction, but some birds related to dinosaurs survived, which can be regarded as a disguised continuation of the bloodline for dinosaurs!