Saturday, 15 December 2012

Weedy Sea Dragon

The camouflage that weedy sea dragons use to hide in the temperate marine vegetation they derive their name from is so successful that once they reach adulthood they have no natural predators. Unfortunately they are still at risk due to habitat destruction. The males of the species carry the bright pink, fertilized eggs underneath their tails for about two months before the fully formed young hatch and are left to fend for themselves.
A male weedy sea dragon carries bright pink eggs underneath his tail.

Saturday, 25 August 2012

Linnaean Hierarchy


Significance of Classification and Naming Animals:




The classification is a human made system for orderly arrangements of different animals. Nomenclature of animals provides a terminology essential in the exchange of knowledge and ideas in research and teaching. The name given to animals has specific meaning. For instance, the name “Physalia” means to Zoologists not only a particular genus of coelenterates but also a particular body from, mode of life and so forth. Biological classification is based on the bionomial system of nomenclature introduced by Linnaeus (1707-78) who is referred to as father of classification. International rules for Zoological nomenclature were prepared in 1931. Linnaeus subdivided plants and animals into groups or taxas as given below:
Empire>Kingdom>>Class>>>Order>>>>Genus>>>>>Species>>>>>>Variety.
The above is called Linnaean Hierarchy.


 Most common Classification----->>>                                                                                                                                                                         


Another Classification------------->>>>>>>>>>                                                                                                                                                
The above is called Linnaean Hierarchy.