Many children don't like to eat fish, and parents are also afraid of their children eating fish, because there is one objectionable thing in fish, that is, fishbone. I believe most people have experienced the feeling of being stuck by a fishbone. It is really uncomfortable. Some people lose their lives because of being stuck by a fishbone. Many people are complaining, why do they have thorns if the fish is so delicious?
In fact, it is not just humans who eat fish. Many animals in nature feed on fish. What if these animals are caught by the bones when they eat fish? To be clear about this problem, we must first know the cause of the fishbone.
From an evolutionary point of view, most fish bones only appear in less advanced freshwater fish, mainly to make up for the lack of muscle strength. Some fishes that have evolved further have few or no spines, such as most marine fish. But to put it bluntly, fish with fewer bones have rougher meat quality, and fish with more bones will have more delicious meat, such as shad.
When animals eat fish, they still face the problem of fishbone, so how do they solve it?
Here we have two discussions, one is an animal whose main food is fish, and the other is an animal that does not take fish as its main food, but can eat fish.
First of all, there are many animals that feed on fish, such as penguins, cormorants, brown bears and otters.
Penguins and cormorants, these two animals eat fish very simply and rudely. Because they are birds, they have no teeth and have some barbs in their mouths. When eating fish, they swallow them in one bite. . The penguin's digestive tract is very hard, and fish passing through it will not cause harm at all. After swallowing the belly, the stomach acid of the penguin is to digest the whole fish, naturally there is no bone problem. However, penguins eat smaller fish, while cormorants are more powerful. They can even swallow fish about the same length as their body, which is really powerful.
Brown bears mainly live in North America and Siberia. They are also a fish-based animal. The brown bear eats fish very simply and rudely. The smaller one is swallowed in one bite, and the larger one is bitten in half and swallowed. The bear will not chew slowly, so naturally there is no need to worry about fish bones.
Among the fish-based animals, only otters and other mustelids, like humans, "chew slowly". When an otter eats a fish, it will chew all the parts of the fish, including the bones, bones, scales, internal organs and fish meat, and then swallow them.
In addition to these animals, humans, cats, dogs and other animals belong to the kind that can eat fish but do not feed on fish.
The human digestive tract is actually more suitable for plants. In the beginning, the ancient apes mainly eat young leaves and fruits on the tree, so the digestive tract is very sensitive, and the food must be chewed to swallow . When eating meat, I also chew slowly and never eat bones. This causes the human digestive organs to be different from other carnivores. They can only be eaten by chewing slowly, and fish bones are hidden weapons hidden in them. So when eating fish, be careful to use your tongue to find out the tiny bones and spit them out.
The same goes for cats and dogs. We may all think that cats like to eat fish the most, but in fact, the ancestors of cats lived in the desert and have nothing to do with fish. Dogs are also domesticated from wolves, and there is basically no condition to eat fish in the wild. Therefore, if cats and dogs are not careful about eating fish meat, they will be caught by the bones of the fish, causing injuries and even fatalities.
Therefore, as long as animals that do not feed on fish as their staple food eat thorny fish, there is a certain risk.
