sociology. 1. the science or study of the origin, development, organization, and functioning of human society. 2. the science of fundamental laws of social behavior, relations, institutions, etc. â sociologist, n. â sociological, adj. 1. the science or study of the origin, development, organization, and functioning of human society. 2. the science of the fundamental laws of social relations, institutions, etc.
The Largest Animal Ever: The Blue Whale. The blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At 30 metres (98 ft) in length and 180 metric tons (200 short tons) or more in weight, it is the largest known animal to have ever existed.
The biggest land mammals ever to live evolved by around 39-40 million years ago (near the end of the Eocene Epoch) and flourished during the subsequent Oligocene Epoch (33.9-23 million years ago). The largest of them was a hornless rhinoceros (Indricotherium transouralicum) living in Eurasia that weighed 16.5 tons (15,000 kg.) and stood 18 feet (5.5 m.) at the shoulders.