They are voracious carnivores and the top predators of the sea, with ever-active brains with at least one cerebral hemisphere is active even while asleep.
Their exceptionally shaped, streamlined body with powerful fins offers them a strong and fast swimming ability. Sharks are cartilaginous fish, living exclusively in the sea. The economic value of the dolphin fin is very low, but those have been used as fish baits in some places. The caudal fin is oriented in a plane that is perpendicular to the plane of dorsal fin in these mammalians. The caudal fin of the dolphins could not be seen unless it decides to jump out of water. The attachment of the rear end of their dorsal fin is smooth and gentle. However, the smooth texture of the fins of dolphins does not change due to those accidents. Although they do not swim close to sharks, as they both evade each other usually, dolphins suffer in certain cases of crossing each other’s paths. Dolphins usually swim close to boats even in the deep sea, because of that they have some sort of damaged dorsal fins. Dolphins have only one dorsal fin, and there are no any small fins between dorsal and caudal fins. In addition, the tip of the dorsal fin is smoother than pointed. The dorsal fin of dolphins is smooth and curved, which could be a very important observation to make when they swim close to the water surface. Their whole body is highly streamlined to give them an easy swimming friendly shape in the water column. This article intends to emphasise some important differences between the fins of dolphin and shark.ĭolphins are mammals, and their skeleton is made up of bones. Although the differences between dolphin and sharks are known as a whole, it would be the variations of their dorsal fins that would matter the most to save the life since the whole body does not come out of the surface too often.
Dolphins do not usually attack the humans, but sharks do, and the person’s life could be saved if the identification is correct. Capability of identifying a shark from a tuna by observing the fins is much advantageous, especially for someone living around seawaters.