Bison or buffalo are large, even-toed ungulates in the genus Bison within the subfamily Bovinae
Two extant and four extinct species are recognized. Of the four extinct species, three were North American: Bison antiquus, B. latifrons, and B. occidentalis. The fourth, B. priscus, ranged across steppe environments from Western Europe, through Central Asia, East Asia including Japan,and onto North America.
The American bison and the European bison (wisent) are the largest terrestrial animals in North America and Europe. Bison are good swimmers and can cross rivers over half a mile (800 meters) wide. They are nomadic grazers and travel in herds. The bulls leave the herds of females at
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade
Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago. Acanthodians are often referred to as "spiny sharks"; though they are n
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The Weasel is a small-sized carnivorous mammal that is found on every continent with the exception of Australia and it's surrounding islands, along with the more hostile polar regions. There are numerous Weasel species that all vary in size, colour and slightly with their behaviours depending on where in the world they live. The Common Weasel (also known as the European Weasel and the Least Weasel) is the most wide-spread and can be found across much of the northern hemisphere. These tiny but vicious predators are the smallest carnivorous mammals in the world growing to no more than 6 inches from their nose to the tip of their tail. Weasels belong to the mustelid family of carnivores and are
