Even with the vast amount of more recent research, Sociobiology is still worth reading. It will remain a timeless classic and constantly referred to work throughout the foreseeable future. Example after example through the entire book of various species demonstrating certain behaviors make Sociobiology almost as entertaining as it is fascinating which is unusual for something that on the surface appears to be a textbook of sorts. The chapter on aggression is very interesting. As one who is familiar with Wilson's primary interest would expect, there is much on the insect world and ants in particular.
Insects present the biologist with a rich array of social organizations for study and comparison.
Even though I was familiar with sociobiology, some of the key aspects hadn't hit me so hard before. The caste systems of certain species, the altruism factor, and the group organism concepts were risen to a surface I had not previously examined or contemplated. The topic of species level evolution vs. selfish, individual selection is quite fascinating. The controversy is largely over whether or not social behavior has a biological foundation. Clearly such is the case to some degree in a great number of species.