This article provides an overview on cellular and molecular aspects of biodiversity on Earth. Introduction: Biodiversity is the variability among living organisms from all sources, including land- based and aquatic ecosystems, and the ecosystems of which they are part. These include diversity within species, between species, and of ecosystems. Diversity is the key to ensuring the continuance of life on [...]
This article provides an overview on diversities of life forms through ages. Introduction: Plants and animals of extremely diverse and varied morphological characteristics and structural organization are encountered on the surface of the Earth. Arising out of a very simple form of life an intricate balance has been maintained for over 4,000 million years or 4 billion year or 4 [...]
Read this article to learn about categories and census of threatened species. Categories of Threatened Species: The major IUCN threatened categories (IUCN Red List Categories, 1995) currently recognised, together with their definitions are: (i) Extinct (EX): Species not definitely located in the wild during the past fifty years but which may survive in cultivation (e.g. Franklinia aloetamha). Some authors suggest [...]