Shark breeding season how to live and what to eat |
Sharks :
Shark is a species of fish that lives in the seas and oceans, and more than 2000 species have been discovered through fossils, and they differ among them in terms of their body shape, size, manner of behavior and food, and sharks are distinguished from the rest of the other types of fish that they do not have a structure It has a cartilage structure, as it has teeth that grow continuously, as it compensates for the falling teeth, and the small teeth spread over most parts of their skin, making it rough, and some types of them have seven pairs of gill plaques spread on both sides of the head.What is shark food :
Sharks feed primarily on meat, but if they are found in a place that lacks meat, they resort to eating marine plants, such as: whale shark that feeds on marine plankton, and carnivorous fish have sharp teeth that help them catch prey and cut them while fish have eaten Plants have grinding teeth in their throat called pharyngeal teeth, which help them chew plants.It is a ferocious marine animal that feeds on the flesh of other creatures such as marine mammals, dolphins, and seals, as well as seagulls and sea turtles, as well as some other species of shark names. Sharks have strong teeth that are able to chew meat, bones, shells, etc. They are the most powerful marine creatures ever.
Shark breeding methods :
Some sharks reproduce by eggs, where an egg sac is placed in its mouth and searches for appropriate places such as Port Jackson shark, and some reproduce by birth, called fish, and examples of river fish that live in the Pacific Ocean, for example, give birth to a baby of a reasonable size may reach Sometimes to one-fifth the size of its mother, and there are some species that keep eggs inside, where the fetus is connected to his mother through a rope similar to the umbilical cord in a person and then gives birth from 20 to 50 young births such as shark Abu Hamra fine.Methods for determining the age of sharks:
Shark ages range from a few weeks to some months, but some may live for fifty years or more, such as sturgeon, and scientists can determine the age of fish in two ways :- Through the rings that appear on the scales of the fish, where they are similar to the rings that appear in the trunks of trees, so the rings grow in the scales of the fish annually and each couple of episodes is considered a year in the age of the fish, and these rings are characterized as growing quickly in the summer and are far apart and have spaced separations while Its growth is slow in winter and the breaks are narrow.
- Through the annular structures present in the ears, the ears are a group of small bones that grow in the inner ear of the fish, where the annular structures indicate their age, and scientists often resort to this method because the scales of the scales are affected by several factors that affect determining the correct age.
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