There are a number of ways to tell the difference between sharks and dolphins. The easiest way is by examining the characteristics of the dorsal fin's shape; shark fins have a straight trailing edge, while dolphins' fins curve sharply backwards at the tip. According to Surf Look, another way to identify sharks is by noticing that their tail fins are vertical, while dolphins' back fins are horizontal.Know More
Sharks' tail fins sometimes break the surface and trail along behind their dorsal fins. Generally, if more than one fin is breaking the surface of the water, the animal is quite likely to be a shark. Movement is another way to tell the difference between sharks and dolphins. Dolphins tend to move in more of an up-and-down manner when they swim. Sharks tend to move in more of a side-to-side motion.
Upon close inspection, it is easy to see that sharks' and dolphins' dorsal fins are attached to their bodies differently. Dolphins' fins emerge smoothly from their backs, while sharks' fins feature a triangular notch on the backside of the base. This feature visually separates this portion of the fin from the surface of the shark's back.
If the fin spotted matches the characteristics of that of a dolphin, there is also a chance that it can belong to a porpoise or whale.Learn more in Marine Life
Sharks are found in every ocean in the world and are sometimes found out of their habitat in rivers and streams. There are around 368 species of sharks in the world.Full Answer >
A whale shark protects itself with its enormous size and its skin of up to 6 inches in thickness. The whale shark grows very quickly. It is a filterfeeding species of shark.Full Answer >
Whale sharks breed by internal insemination of a female by a male. The young are born alive and take about 30 years to reach sexual maturity. Whale sharks are believed to live 70 to 100 years.Full Answer >
Saltwater crocodiles are known to occasionally prey on sharks, meaning that a crocodile would most likely win in a hypothetical confrontation with one. Armed with a muscular, heavily armored body, sharp claws and the strongest bite of any animal ever recorded, the saltwater crocodile is among the world's greatest predators.Full Answer >