Find animal profiles, comparisons, pet care guides, dinosaurs, FAQs, and tools.
The Jehol Group in western Liaoning is a famous Mesozoic continental stratum in China and has always occupied an important position in the history of paleobiostratigraphy research in China. However, although this formation has produced numerous plant fossils, invertebrate fossils and fish fos
On May 14, 1992, the staff of the Black Mountain Research Institute in Hill City, western United States, were doing their jobs as usual. Suddenly, a sound of sirens coming from far and near broke the tranquility here. Then, more than 30 FBI officers and more than 20 National Guard personnel b
Ornithopods are an important branch of the dinosaur family. They consist of some diverse vegetarian dinosaurs and include four families: Dimetrodon, Hypsilodon, Iguanodon and Hadrosaurid. Although all ornithopod dinosaurs are vegetarian, due to their adaptation to different living environment
When it comes to dinosaur eggs, many people may be familiar with them. A large number of dinosaur eggs were discovered in the Xixia area of Henan Province in my country in the past few years, and many of them were smuggled abroad by fossil traffickers. What's more, some scholars claimed t
In June 1995, the American Museum of Natural History reopened its two dinosaur exhibition halls to the public after three years of renovation. The brand-new exhibitions immediately attracted great attention from the society. The new display not only makes the postures of dinosaurs more vivid
During the Pliocene Epoch, the average altitude of the Qinghai-Tibet Plateau was only a few hundred meters to about 1,000 meters. Scientists have accumulated extremely thick river and lake facies at an altitude of more than 4,000 meters in the Gyirong Basin on the north side of Shishapangma P
The vast, roaring, and fertile Southern Ocean is a world-famous sea pasture. It nurtures an astonishing number of marine life. In addition to large creatures such as penguins and seals, whales are outstanding. The blue whale is the largest mammal in Antarctica and the largest mammal in the world. The number and catch of whales in the Southern Ocean ranks first among all oceans in the world. There are about 1 million heads in existence. Whenever the Antarctic summer comes, giant whales from the S
The vast, roaring, and fertile Southern Ocean is a world-famous sea pasture. It breeds an astonishing number of marine life. In addition to large creatures such as penguins and seals, whales are even more outstanding. The blue whale is the largest mammal in Antarctica and the largest mammal i
There are about 20 species of penguins in the world, all of which are distributed in the Southern Hemisphere, centered on the Antarctic continent and extending as far north as the southern tip of Africa, South America and Oceania. They are mainly distributed along the coast of the continent and on some islands. There are 7 species of Antarctic penguins: emperor penguins, Adélie penguins, gentoo penguins (also known as gentoo penguins), chinstrap penguins (also known as Antarctic penguins), king
There are about 20 species of penguins in the world, all of which are distributed in the southern hemisphere, centered on the Antarctic continent and extending as far north as the southern tip of Africa, South America and Oceania. They are mainly distributed along the coast of the continent a
In addition to the primary sexual characteristics - the difference between the ovaries and testes - people mainly use secondary sexual characteristics (or secondary sexual characteristics) to identify the sex of fish. However, secondary sexual characteristics are usually more obvious during the re
The stickleback fish has the same habit of protecting its young as the snakehead fish. The difference is that the male fish is responsible for the tasks of nest building and baby care during reproduction. The breeding season of sticklebacks is from May to July every year. At this time, the ma
The original species of koi is red carp. It was introduced to Japan from China in the early days. After artificial improvement, it became scarlet carp, also known as colored carp and flower carp. After World War II, it was renamed koi carp. The classification of koi varie
Big-headed carp (Cyprinus (C.) pellegrini) belongs to the order Cypriniformes, family Cyprinidae, subfamily Cyprinus, and genus Cyprinus. Commonly known as: big-headed fish, Luyu ("Chenjiang Prefecture"). English name: Barbless carp. Endangerment level: Vulnerable. China'
Northern salmon (Stenodus leucichthys) belongs to the order Salmoniformes, family Salmonidae, and genus Stenodus leucichthys. Commonly known as: big white fish. English name: Inconnu. Endangerment level: extinct (domestic). The body is long, the sides
The narrow-bodied tongue sole (Cynoglossus gracilis) belongs to the order Cynoglossus, the family Cynoglossus, and the genus Cynoglossus. Commonly known as: tongue sole, flatfish. English name: Narrow tonguesole. The body is narrow, long and flat, shaped like a tongue. Th
Anabas testudineus belongs to the order Perciformes, suborder Anabas, family Anabasidae, and genus Anabas. English name: Climbing perches, Climbing gouramies. It is so named because it looks like a perch and can climb trees. The body is oval, with flat sides; the head is
Clarias batrachus, also known as amphibian catfish, was introduced from Thailand in 1978 by the Department of Biology of South China Normal University. It is very similar to the bearded catfish native to southern my country in terms of shape and habits. The body of the Toadbeard Catfish is re