Though the actual number is 50, some people are of the opinion that there are 48 states; others believe that there 49, and some even go to the extent of asserting that there are 51 states in total.
The lemming is a tiny rodent that is found in or near the Arctic Circle and are thought to be related to voles and muskrats. The smallest species of lemming is the wood lemming measuring around 8 cm. The Norwegian lemming is roughly three times the size of a wood lemming and is one of the largest species of lemming.
The most well known example of creatures which have a population cycle is the lemming. The biologist Charles Elton first identified in 1924 that the lemming had regular cycles of population growth and decline. When their population outgrows the resources of their habitat, lemmings migrate, although contrary to popular myth, they do not jump into the sea. Other species