Friends who often understand biology should have heard a saying: No one looks at the bottom of the sea anyway, just long and long.
Below the ocean, there are indeed many creatures with strange appearances, very peculiar. The creature mentioned today looks very strange, even a little scary, it is the deep-sea trout.
The deep-sea trout, also known as the lanternfish, is a creature of the order trout.
The order Trout is a benthic fish that is commonly found on the seafloor, lying mainly quietly on the ocean floor or moving at a very slow speed.
One of the biggest features of the sturgeon is that a rod-like part of the head sticks out. This is their first dorsal fin with a skin fold at the end that forms the shape of a bait. In this area, due to the presence of special glandular cells, a special hormone, photonogen, can be produced. Under the action of photoarase, this part will emit light, so people call it lanternfish.
Since the sturgeon mainly lives on the bottom of the sea, it is a dark world. This bright light will attract a large number of small fish with phototropism. When these small fish are circling around the "lantern", the sturgeon will suddenly strike and feast on the food.
As the saying goes, water can carry a boat, but it can also overturn a boat. Lanterns can bring food to the trout as well as enemies. Sometimes, these glowing areas attract large predators.
However, the trout is still very clever, and when they find that what they attract does not seem to be their own food, they will take the lantern in their mouths and cover the light source, so that they can escape the pursuit of predators.
Among the squid, there is also a deep-sea squid whose appearance can be described as horror.
Anyone who sees the deep-sea catfish at first glance will be attracted by its large mouth of blood basin. In its large mouth, there are countless sharp blade-like teeth densely arranged. These teeth are slightly barbed inwards, and any prey that enters its mouth will not want to flee.
Deep-sea trout have no ribs and can hold up a large belly. Therefore, even prey that is larger than them may be swallowed by it in one bite.
Due to their long-term life on the seabed, deep-sea trouts have even evolved meat stalks, which are distributed on the stomach and act as feet to help them "walk".
Deep-sea catfish are different from us humans, generally females are larger than males, and much larger, and can even reach 6 times the size of males.
And their "male-female relationship" is also very different from that of human beings.
In general, a male sturgeon is about the size of a finger. The hook teeth in their mouths are different from those of females, females are used to bite prey, males are used to bite females...
Male sturgeon uses its hook teeth to bite the female, attaching itself to the female. The two circulatory systems are then linked. From then on, they seemed to merge into one, sticking together forever. The male does not need to prey, and all its energy sources rely on the female for predation. From this point of view, male sturgeon is more like a parasite.
Moreover, male sturgeon has only this one way to live. If they can't find a female squid to attach to, they will starve to death.
For food, male sturgeon never cares about whether they have a companion or not. When a female squid is seen, it will attach itself to it without hesitation. Sometimes, if they look closely, they will find that this female sturgeon has long been attached to countless predecessors, and together with it, they eat and drink...