Silky Shark
Actually, the silky shark has many names like, the blackspot shark, ridgeback shark, sickle shark, to name a few. No surprise, this is another requiem shark. Besides its enormous size and sharp teeth, the noted aggressive behavior makes silky sharks are threat to humans. Luckily, there have not been many recorded attacks. Though, the shark has been known to harass swimmers. However, in the presence of food the shark will become very excited. Thus, they probably pose the most threat then.
Dusky Shark
The requiem species dusty shark resides in warm waters across the globe. Due to its large size, it’s considered a threat to humans. Though there is a lack of knowledge of actual human interaction. So far, there was one fatal attack and six attacks on people and even boats.