Biology

Evolution of the Polar Bear

It is thought that polar bears have evolved from the brown bear. Thousands of years ago, somewhere around the Ice Age, a population of brown bears became dependent on the abundance of seals in the icy waters of the north….
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How Tigers Hunt

Most tigers live in forests or grasslands, for which their camouflage is ideally suited, and where it is easy to hunt prey that are faster or more agile. Among the big cats, only the tiger and jaguar are strong swimmers;…
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Burdock the Magical Weed

Botanical Name: Arctium Lappa Common name: Burdock Group: Dicot Family: Asteraceae Description: This is a herbaceous, biennial plant belonging to the genus Arctium and has prickly purple flowers and large coarse and ovate leaves which are woolly underneath. The plant…
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The Permanence of Extinction

Ever wondered where the phrase “as dead as a Dodo” comes from? Here is a salutary lesson in man’s callousness in driving a species to extinction, due to its extinction occurring during recorded human history, and being directly attributable to…
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The Biology of Christmas Trees

Christmas trees are of many different species, but all have certain things in common. Unless they are the artificial kind, made of aluminum or plastic, Christmas trees are conifers, that is, cone-bearing trees. Also, because tradition demands a certain shape…
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Tree Profile Cockspur Hawthorn

Hawthorns are a large genus of small trees and shrubs from the rose family. Scientifically known as “Crataegus” the Cockspur Thorn is native to temperate regions of the northern-hemisphere.  Identifying species is never easy. Firstly, the leaves of the Cockspur…
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