2020-11-04

Scientists completely restore the brain of a dinosaur, which is lighter than a pea

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getInterUrl?uicrIvZQ=ba7e6adc390bdf8c1fdd4efe7ad3bbab - Scientists completely restore the brain of a dinosaur, which is lighter than a peaAccording to the British”Metropolis” report on November 3, recently, the world’s first complete dinosaur brain was successfully restored by scientists. It is lighter than a pea, and belongs to a carnivorous dinosaur—Bryantosaurus that lived 233 million years ago.

When this beast was discovered, its head was well preserved, which provided convenience for the precise reconstruction of its brain. This reconstruction provides new clues for humans to study the brain evolution of the largest terrestrial animal in history.

Bryanthitosaurus is the ancestor of the long-necked sauropod dinosaur. The results of the study show that Buchner raptors are very good at hunting. Their eyesight is better than their sense of smell, but they are not as smart as tyrannosaurus and current birds . They weigh about six kilograms and are about the size of a fox, but they are ferocious. Lizards, primitive mammals, insects and other kinds of dinosaur cubs are their prey.

Researchers used CT scans to observe the conditions inside the head of Buchner Raptor, using X-rays to depict the cerebellum, optic lobe, olfactory bulb and tract, as well as the brain and the pituitary gland at the bottom of the brain. Dr. Rodrigo Muller, a paleontologist at the Federal University of Santa Maria in Brazil, said:”The brain of Buchner Raptor is small, weighing about 1.5 grams, slightly lighter than a pea, and its shape is very similar to the brain of a crocodile. Well-developed, it shows that it has the ability to track moving prey. It mainly relies on keen vision to track prey, not smell.”

The Buchner Raptor discovered this time is about 1.2 meters long and has a long neck. , The teeth are sharp, each limb has 3 long claws. Its remains were discovered in Brazil in 2015 by an expedition led by Dr. Muller. According to research, the most significant changes in his brain are the increase in the olfactory bulb and the increase in the pituitary gland. Dr. Muller explained:”The improved sense of smell may be related to more complex social behaviors, which can be seen in some vertebrates, and a good sense of smell can help them better distinguish between digestible and non-digestible plants.”

The study also calculated the intelligence level of Buchner Raptor based on brain capacity and weight. Dr. Muller said:”Buchner Raptor’s intelligence is higher than that of giant sauropod dinosaurs (such as Diplodocus and Brachiosaurus), which shows that the dinosaur’s brain is gradually shrinking and the nerve function has also changed. Buchner Raptor’s cognitive ability is lower than theropod dinosaurs (including Tyrannosaurus and Velociraptor) and birds.”

Most experts believe that birds are”living dinosaurs”, and their main skeletal characteristics and nesting and incubation behaviors first appeared in some dinosaurs. (Compiled and reported by China Youth Network)

Source:China Youth Network