Cuộc sống ở Nam bán cầu

Nam Cực là lục địa cực nam của Trái đất, bao gồm cực Nam địa lý. Nó nằm ở khu vực Nam Cực của Nam Bán cầu, gần như hoàn toàn về phía Nam của Vòng Nam Cực, và được bao quanh bởi Nam Đại Dương. Với diện tích 14.000.000 km vuông, nó là lục địa lớn thứ năm về …

Birds From Around the World

Birds are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the 5 cm bee hummingbird to the 2.75 m  ostrich. They rank as the class of tetrapods with the most living …

Life Under Water

Three quarters of the planet Earth is covered by water. A majority of the planet’s solid surface is abyssal plain, at depths between 4,000 and 5,500 metres (13,100 and 18,000 ft) below the surface of the oceans. The solid surface location on the planet closest to the centre of the orb is the Challenger Deep, located in the Mariana Trench …

Preserving Wildlifes

Wildlife traditionally refers to undomesticated animal species, but has come to include all plants, fungi, and other organisms that grow or live wild in an area without being introduced by humans. Wildlife can be found in all ecosystems. Deserts, forests, rain forests, plains, grasslands, and other areas including the most developed urban sites, all have distinct forms of wildlife. While …

Mountains all around the world

A mountain is a large land form that stretches above the surrounding land in a limited area, usually in the form of a peak. A mountain is generally steeper than a hill. Mountains are formed through tectonic forces or volcanism. These forces can locally raise the surface of the earth. Mountains erode slowly through the action of rivers, weather conditions, …