Yes, dinosaurs once existed on Earth. Dinosaurs are an extinct group of ancient creatures that lived on Earth during the Jurassic, Triassic, and Cretaceous periods and became extinct about 65 million years ago.
Our knowledge of dinosaurs mainly comes from the fossils they left behind. These fossils include remains such as bones, teeth, prints, and feces. By studying these fossils, scientists can depict the appearance, behavior, and ecological environment of dinosaurs.
The discovery and study of dinosaurs began in the early 19th century, when people began to discover some huge fossil bones and realized that these relics did not belong to any known animal. Gradually, dinosaurs became an important research object in the field of paleontology, and many scientists devoted themselves to the excavation and study of dinosaur fossils, and discovered a large number of new species and information.
So, although we cannot directly observe existing dinosaurs, we have a very deep understanding of dinosaurs thanks to research in genetics, geology, paleontology and other fields.
animal tags：
you may also like
If you are scratched by a cat, you need to take timely measures to avoid infection or other health problems. Here are some common treatment steps:1. Clean the wound: Wash the wound with warm water and soap, and rinse it thoroughly to avoid bacterial infection.2. Do appropri...
Common birds in rural areas may vary depending on the region and season. Here are some common birds in rural areas:1. Sparrows: Sparrows are very common small birds. They usually appear in groups and often move around on roofs, trees or rice fields in rural areas.2. Swallow...
To distinguish between male and female Chinese betta fish, you can observe the following characteristics: 1. Fish body shape: Male betta fish are usually larger and thicker than female betta fish. The dorsal and tail fins of male bettas may be longer and more ornate, whil...
Training a bird to talk takes patience and time. Here are some basic steps:1. Choose a good species: It is recommended to choose a species that is good at learning languages, such as macaws, Amazon parrots or parrots.2. Build a trusting relationship: It is important to develop a close relationship w...
Teaching a rabbit or any animal a lesson is not a constructive behavior and can cause harm and suffering to the animal. Violence or cruelty to animals is illegal and morally unacceptable. Instead, consider using positive training methods to teach your rabbit good behavior...
Catnip is an herb that cats love. It contains an ingredient called "nipozone", which can stimulate catnip receptors and the central nervous system, producing an olfactory stimulation effect. Here’s how to use catnip correctly: 1. Choose catnip of appropriate quality ...
Albino animals are animals that do not have melanin or other pigments in their bodies. Their skin, hair, or feathers are often white or light-colored. Here are some famous albino animals: 1. White tiger: The white tiger is a very rare albino tiger with white skin and hai...
Severe hair loss in dogs may be a normal physiological phenomenon, or it may be a manifestation of certain health problems. Here are some common causes and possible solutions:1. Seasonal hair loss: Some dogs will experience seasonal hair loss in spring and autumn, which is a normal physiological phe...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
