But since 2006, the city has added more than 64,000 people. The new census numbers, however, suggest that the population rise has slowed. Philadelphia added only about half as many residents in 2013 as it gained in 2011 and 2012. Between 2010 and 2012, the cityâs population grew by more than 1.3 percent. The cityâs growth last year primarily stemmed from births and foreign immigrants.
1 Genera & species: There are more than 100 genera and about 2,300 species of wolf spiders; 200 species live in the United States. 2  The Carolina wolf spider (Hogna carolinensis) is the official state spider of South Carolina, which is the only state that has a state spider.nlike most spiders that catch their prey in webs, wolf spiders violently hunt it down using their strong bodies and sharp eyesight. These spiders also exhibit unique parenting habits that are of great interest to scientists.
A Wolf spider is a member of the group of spiders whose scientific name is the Lycosidae. Lycos means wolf in Latin. These spiders get their name from the way they hunt, which the people who named them thought was like the way wolves hunt.However, wolves hunt in packs but spiders are solitary animals. Their way of hunting is more like that of solitary cats such as the cheetahs.he eyes of a wolf spider -- note that they are not all the same size. The eyes of a wolf spider seen from the front. The eyes of a spider that is not a wolf spider. There are several kinds of spiders that look almost like wolf spiders. The best way to be sure is to look at the eyes.