The yak is a herd animal found in the mountainous regions of central Asia. The yak tend to gather in herds from 10 yaks to 100 yaks, most of which are female. There are only a few male yaks per herd.
Although there is a large domestic population of yak, there are only a few wild yak remaining . The yak is still used in many parts of central Asia, for pulling heavy farm machines and transporting large loads through the mountain passes.
The average male yak can grow to about 2meters tall, with the female yak being about 1/3 the size of the male yak. All yak have very long hair to keep them warm.
The yak belongs to the same cow family as the Asian water buffalo, the African bu
The mayfly is medium-sized insect that is found in a variety of habitats all around the world. The mayfly is one of the most short-lived animals in the world and is most closely related to dragonflies and damselflies.
There are 2,500 known species of mayfly generally found close to water, all around the world with over 600 species of mayfly natively found in North America. Mayflies are extremely sensitive to pollution and can therefore only be found close to water that is of a high quality.
Mayflies have long narrow bodies and large wings, with a second set of smaller hind wings behind them (in a similar way to butterflies and moths). This allows the mayfly to have greater agilit
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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
