The Aburame clan is a mysterious family that has an extremely creepy and special ability. The ability to control and communicate with bugs. They are most noticeable because most of the family members wear shades or sunglasses. At birth, the babies of that clan are given to the kikai, or destruction bugs. The kikai are the parasites and the body of the newborn is the host. However, it's a mutualism. They both benefit. The kikai get chakra and the host body gets a powerful weapon and resource.
The kikai are useful as offensive, defensive, and informational tools. An example of them being offensive is when Shino used them to block the holes in Zaku's palms during the chuunin exam preliminaries. First, Shino told them to block the air holes in Zaku's palms because that is where Zaku unleashes his attack. An example of defence is when Shino had the kikai sneak up behind Zaku to intimidate him. Since at that moment Zaku 'supposedly' had only one working arm, Shino thought it might make him forfeit because if Zaku attacked Shino then the kikai would attack. And vice versa.
An example of information collecting is during the first test of the chuunin exam when they had to take a test. The instructor said not to cheat or else you'll fail with your team mates. But the hidden meaning was to cheat in such a way that you won't get caught. In other words, he meant to look for the hidden meaning using the saying what's underneath the underneath. Shino's way of cheating was creative and he didn't get caught. He had his little bee fly around the room collecting information from other people. Since he can communicate with bugs, he can easily understand what the bee is saying to him. These are the abilities of the Aburame clan... Although there may be more that haven't been revealed.