According to shark specialists, this animal is not as dangerous as people think. Here, we offer you a chance to see these fish up close, as fascinating as they are disturbing. You will find a massive collection of shark coloring pictures below. Have fun.
The shark is a vertebrate animal of the Chondrichthyes class, that is, it is a cartilaginous fish, and of the subclass Elasmobranchii. Among the main characteristics, we can highlight the presence of a cartilaginous skeleton with calcium deposition and the fact that they are carnivores.
Shark Coloring Pages
Sharks are large animals. Some species can reach up to 20m in length. Their body is fusiform, their skin, rough and resistant, is covered by placoid scales, whose forms and distribution increase the efficiency of swimming – a fact that helps them in the search for their prey.
They have a well-developed vision, a keen sense of smell, being able to feel certain odors at great distances. The presence of lateral lines can identify changes in water pressure, being essential vibration detectors; ampoules of Lorenzini, which identify electric fields generated by muscular contraction of other animals.
Shark Coloring Pages
The fecundation is internal, and the male presents in the pelvic fins structures called claspers. It is responsible for the population; they can be oviparous, ovoviviparous, or viviparous. In some species, cannibalism can be observed between embryos.
They have a ventral mouth with teeth arranged in rows, which can be replaced during life. They have a capacity for the mobility of the skull (cranial kinesis), which allows them to feed on large prey; they have a spiral valve in the intestine, which increases the surface of the absorption of nutrients.
Like the other fish, they have a heart with two cavities, an atrium, and a ventricle, and closed circulation. They have brachial respiration and no swim bladder. It is essential to highlight here that, as there is no swim bladder, the liver, due to a large amount of fat, is the one that helps it to float.
There are different species of shark, so there are different types of feeding and, contrary to what many think, not all are voracious predators. Some sharks feed on large animals, such as other fish, turtles, and seals, which is the case, for example, with the white shark.
The whale shark, however, does not have this habit, being classified as a filter shark, despite what many people think, not all sharks are ferocious and dangerous predators.
Those species that feed by capturing other animals have strong jaws and a series of very sharp teeth. The teeth are arranged in rows, and as the old teeth fall out, the younger teeth move forward in the mouth.