Sharks! Does this title bring a feeling of fear in your mind? Or you get excited by hearing the title. Today I am going to tell you each and everything about sharks; from their body structure, to eating habits, to myths and facts related to them. So let’s begin with something general about them.
Sharks are the members of Chondricythyes class that have full cartilaginous skeleton and a streamlined body. Rays and skates also belong to the same class, so sharks are extremely close relative of rays and skates. Shockingly almost all of them relate to rays more instead of other sharks. They like all other fishes, respire through gills rather than through lungs as mammals do. Sharks have canine teethes that are not attached to the jaw, rather are embedded in the skin. Their teeth are the most surprised beauty that God have given to them. Sharks physical construction is quite varying. Sharks can be too little just 22 centimeters long such as pygmy shark or can be overly large around 13 meters such as white shark. Until now, more than 360 species of these sharks are discovered. The most notable of all is Bull Shark.
They have cartilaginous skeleton that’s quite light and very flexible than bone. Their skin is often guarded against parasites and other damages because of dermal denticles covering. All sharks have compact bodies though few of them have wide fins at the end. So as with other fish species in addition they swim swiftly though they have bulky bodies.
Sharks teethes are not attached to the jaw but they are rooted into the flesh of their mouth. This might be because they need more piercing power when attacking their prey. Interesting fact about sharks teethes is that in a typical, single shark may loose 30,000 teeth in a lifetime. Sharks have tails that provide them speed and acceleration. The arrangement of the tail varies from shark . Shape of the tail provides shark the capability to prey and survive in different environments.
Sharks respire through gill slits that are situated just next to head prior to the pectoral fin. In addition they have spiracle, a modified gill, right over the head though which they intake water while respiring. This spiracle plays significant role for the bottom dwelling sharks in which the oxygen concentration in the water is less. Sharks eyes are covered with a tissue called tapetum lucidum that made them perfect for marine atmosphere. Sharks life span may be from 20 to 30 years.
Sharks Eating Habits and opossum control:
Sharks are carnivore. They can eat anything from small fishes, crabs, turtles, big fishes, and even other tiny sharks. They prey in groups whether they’re preying on the surface of the water or in the bottom. Their technique to assault may differ from species to specie. Some sharks swathe their prey and kill the weak ones while other sharks prey using concealed attack technique. But one thing is common to all of them. They are aggressive. Yes and this aggressiveness have encouraged them to humans also. Sharks have olfactory glands that let them sense even a one part million of blood in the water. They do have hearing power too.
Reproduction in shark is very seldom observed. Although some sharks reproduce by curling around the female shark whereas other shark the big ones often mate swimming parallel to one another. One can easily differentiate between man shark and female shark. Males have modified pelvic. Sharks produce pups either directly or safeguard them using egg cases unlike eggs put down by other fishes. Sharks can even mate without the need of any male partner.
This all told about their arrangement, eating habits and reproduction, let’s know move towards some rumors associated with them. In direct words, sharks don’t prey humans though few shark species are dangerous for humans. They don’t like to feed on people. So what about the stories associated with the sharks attacking the humans? Usually sea-divers and water surfers are the victims of shark’s strikes. Sharks like to ride high tides and hence often attacks surfers coming their way. We people often think that white sharks are the most peculiar underwater creatures but some divers had reported to go as close as to them without a fear of being getting hit by white sharks though few precautions are required.
Get yourself out of the false stories connected with sharks and show your respect towards them. Shark killing was increased in past 50 years. Some of the shark species have gone extinct. They are of enormous importance to us and temperament. Nature has created every creature with pre-defined goals and we should collaborate with character as much as you can.