Is it true that some dinosaurs ate stones?

Dinosaurs are divided into two categories: carnivorous dinosaurs and vegetarian dinosaurs. There are also some dinosaurs that were originally meat eaters, but later evolved into omnivorous, eating both meat and vegetarians. Like living animals, the number of dinosaurs that ate meat was small, and the number of dinosaurs that ate plants was large, and they accounted for the vast majority.

The most famous of the carnivorous dinosaurs is the Tyrannosaurus rex.

In addition, there is the Leaping Dragon.

Dinosaurus, Yongchuansaurus, etc. The main predators of large carnivorous dinosaurs were large herbivorous dinosaurs, such as Diplodocus.

Brontosaurus, Mamenxi Dragon, Duck-billed Dragon, etc.

Fossil footprints of carnivorous dragons chasing brontosaurs have been found in the United States. What's even more interesting is that the tooth marks left by the bite of the carnivorous dragon were found on a fossil skeleton of the brontosaurus, and the teeth of the jumping dragon were found nearby, thus proving that the jumping dragon was the one who "killed" the brontosaurus.

Small carnivorous dragons eat small animals, such as small reptiles.

Insects and mammals.

A small, lightweight, carnivorous dragon that lived by stealing eggs from other dinosaurs. In Mongolia it has been found as a fossil in a dinosaur egg.

found in the nest. Some dinosaurs may have fed exclusively on yard ants, like the anteaters in modern animals. Carnivorous dinosaurs usually had short forelimbs, but the giant hand dinosaurs found in Mongolia had forelimbs as long as 3 meters and huge front claws.

Some believe that giant-handed dinosaurs may have fed on termites, and that their huge forelimbs and claws were tools for digging termite nests. Dinosaurs that eat plants have a hearty food to enjoy, such as pine and cypress, ginkgo, cycads, ferns, etc., which can satisfy the different tastes of different dinosaurs.

Eat some stones to help grind food and digest it. <>

Dinosaurs ate stones to aid digestion, and scientists have found them in the stomachs of some dinosaurs. This is the relevant information about bezoars Gastroliths are foreign things, but they are actually an important part of the digestive organs of dinosaurs, and they are indispensable. In fact, there are also animals on the earth that often eat stones.

Chickens often swallow some gravel, and crocodiles eat stones more commonly. They all eat stones to aid digestion. Gastroliths are rounded and appear to resemble pebbles in rivers or cobblestones formed by wind erosion in the desert.

If bezoars were found alongside the bones of dinosaurs, they would be discarded as worthless waste. It is a pity that there must be a lot of bezoars that are discarded in the wild like this. Not long ago, American scientists invented a method to identify bezoars with laser technology, which can distinguish bezoars from pebbles.

In this way, the bezoars will not be thrown away casually. Bezoars are one of the archival materials left by dinosaurs. Gastroliths are less easily ground or weathered and have more chances of being preserved as fossils than bones.

In the strata, as long as gastroliths have been found, no other fossils have been found, and paleontologists know that dinosaurs lived here. <>

01 Plants are made up of cellulose and lignin, which are tough substances that must be broken down and processed before they can be digested by the stomach. So herbivorous dinosaurs ate hard rocks and grinded food to help the stomach digest it.

Many dinosaurs were herbivorous dinosaurs, and eating plants is much more troublesome than eating meat, because plants are made of cellulose and lignin, and these tough substances must be broken down before they can be digested by the stomach. In order to solve this problem, herbivorous cavity dinosaurs evolved various solutions, and eating hard stones was one of them.

Stones grind food and help the dinosaur's stomach digest it. Those small stones that are swallowed in the stomach are called "bezoars".

What kind of stone is good to eat?

First of all, the shape is rounded. Because sharp stones can easily scratch the esophagus and stomach, it is necessary to choose one with a round and smooth surface that is suitable for swallowing.

Secondly, the size is modest. A stone that is too big to swallow can be swallowed, and it will put a great burden on the stomach; If the stone is too small, it will not be able to grind food, so it is best to choose a moderate size.

Aids digestion.

Chickens also eat some pebbles, which can help with digestion.

Like crocodiles, dinosaurs were reptiles and occasionally ate rocks.

It's all extinct, who knows, it stands to reason that they shouldn't be eaten.

Vegan dinosaurs all ate stones, such as Diplodocus and Bewitched Dragon.

I won't list the hunger here, but here are a few special examples.

Tail-feathered dragon: omnivore.

But it also eats stones.

Chinese dragon bird. Lu Qihui carnivore, found stones on the abdomen, although it may also be eggs or feces next to slow stool.

Golden Phoenix: A carnivore with something like a stone on its belly.

Raptor (Shenzhou bird): Carnivore, suspected to swallow stones.

Chicken-like dragon: omnivore, also eats stones.

We know that chickens often have small pebbles in their stomachs that are used to help it digest.

Herbivorous dinosaurs also had this stone in their stomachs, which scientists call bezoars.

Why did the herbivorous dinosaurs swallow these stones? Do you think it's fun to eat stones, or is it because there are some nutrients in them? Actually, it's neither, it turns out that they were forced to do so, and they were caused by the characteristics of sauropods themselves.

One is that they don't have molars for chewing, and their teeth are not so bad that they can't chew what they eat in their mouths. Because of this trait, it has been believed that they should live in water and feed on some soft aquatic plants. But later people changed their opinion, because they found that they had bezoars in their stomachs, and through the tumbling and stirring of bezoars, it was easy to stir the thick leaves and branches into a paste, so that they could be digested.

Another feature is that sauropod dinosaurs are so large that they need unimaginable food every day, for example, an adult brachiosaurus, it needs 1500 kilograms of food per day, and their heads are small and their mouths are not big, so they only have to eat non-stop every day, even if they can chew food, they don't have this time, not to mention that their teeth are not developed in the first place.

In this way, only with the help of bezoars, the mouth only needs to move food down like a conveyor. The stomach is where the "rough work" comes in. In this way, eating and chewing are not wrong.

Although gastroliths are external to the body of dinosaurs, they are actually an important part of dinosaurs' digestive organs and are indispensable.

Biologists often found highly polished pebbles in the stomach of dinosaur fossil skeletons or in the rock formations where dinosaur fossils were buried, and these small stones were called gastrolliths, which were eaten by dinosaurs before they were alive: the food swallowed by dinosaurs was not easy to digest, so they developed the habit of eating small stones. Eat down the stone for a long time stay in the stomach and <>

As the stomach moves and the food is stirred and rubbed repeatedly, the food is ground and the stones are gradually polished, much like today's birds pecking at peck at pebbles. Dinosaurs, whether herbivorous or carnivorous, all had the same shape of teeth, called homomorphic teeth, and some species did not have vertical teeth. The same type of tooth has the function of biting, but not chewing, so dinosaurs could not chew food when eating the hand field, but only swallowed it.

For small prey, carnivorous dinosaurs swallowed it whole, and if the prey was too large to swallow whole, it was torn into pieces and swallowed piece by piece.

Dinosaurs didn't think anything about eating stones.

Generally speaking, the dinosaurs that ate stones were sauropods. Due to their large size, they <> from this

Some plants simply don't have enough energy to sustain their lives, so they eat and eat and eat and eat almost all day long. However, leaves and grasses are more difficult to digest. So, the dinosaurs ate stones to help with digestion.

After the dinosaurs ate the stones, the stones acted as grinding discs, grinding the food and speeding up digestion. Later, scientists found stones in the stomachs of many sauropod fossils that they once used to aid digestion. This kind of stone high wax head is called a gastrolith, and the bezoars found in these dinosaur numerical stones are generally as smooth as pebbles, because the stones are ground by the stomach every day in the stomach, and finally they are polished very smooth.

Dinosaurs are a highly specialized species of reptiles that gradually evolved, appeared in the Triassic, peaked in the Jurassic and Middle Cretaceous, and became extinct in the late Cretaceous 65 million years ago. Because the most prosperous and representative species on the earth at that time were dinosaurs, which ruled the earth for hundreds of millions of years, this period is called the "Age of Dinosaurs".

Herbivorous dinosaurs were relatively large, walked on all fours, and moved clumsily, while carnivorous dinosaurs were relatively smaller, walked on two hind limbs, and moved quickly. Carnivorous dinosaurs tended to hunt herbivorous dinosaurs.

Some reptiles evolved wings and flew into the blue sky, and they were pterosaurs; There are also reptiles that choose to return to the ocean, they are ichthyosaurs, plesiosaurs or mosaicoons. Whether it's land, sky, or sea, reptiles have achieved absolute initiative.

Early mammals had already appeared by this time, but in the face of powerful dinosaurs, petite mammals had to hide in burrows or underground, and lived day and night, living on the scraps left over from reptiles.

Dinosaurs would definitely eat dinosaurs, especially Tyrannosaurus rex.