1. African elephant African elephants are the largest land mammals, exhibiting sexual dimorphism (males and females differ in size and phys...
According to experts, nearly 60,000 plant species and 2,500,000 insect species live within the Amazon rainforest. Furth...
The rooster crowing and the hen laying eggs is a natural law; however, these laws can be altered by certain factors. In...
Regulations on the Protection of Paleontological Fossils Chapter 1 General Provisions Article 1 This Regulation is form...
1. The history of pterosaur research Pterosaurs were discovered about half a century earlier than dinosaurs, and they w...
1. Archaeopteryx specimen, gradual evolution, from dragon to bird With the discovery of more and more feathered dinosau...
Marine fish thrive in vast waters with a wide variety of species, including many large ones. In contrast, freshwater fi...
The food chain refers to the food relationship between organisms where the strong prey on the weak and they depend on e...
While there are over 150 species of land animals in Antarctica, most of them are parasites found on seabirds and marine...
Antarctica itself has sparse biodiversity; however, the ocean surrounding it—the Southern Ocean—is a vibrant biological...
Antarctic krill are a type of crustacean zooplankton that live in the Southern Ocean. They are small, typically 3-5 cen...
Seals are pinniped mammals with streamlined bodies and short, smooth fur that provides excellent protection against win...
There are six species of seals inhabiting the area south of the Antarctic Convergence: the sawtooth seal, elephant seal...
Elephant seals are found in the waters surrounding Antarctic islands. They breed on land and prefer to live in groups. ...
Weddell seals, which inhabit the ice fields and ice edges of the Southern Ocean, are master punchers and valuable assis...
Antarctic Weddell seals are also excellent divers, capable of diving to depths of 600 meters and staying for up to an h...