Livestock (or dolphin)
The porpoise doesn't look like a real pig except for its color. In fact, this is a kind of sea cucumber with a thick leg. They look strange to people, but in reality they are incredibly common and live on the ocean floors of every ocean in the world. They often travel in large groups, sometimes hundreds. Despite their strangeness, they felt joy and even became something like internet memes!
Paloestetus Coulomb

As the name suggests, what makes this fish unusual is that fish. The male reproductive system is on his head. The female genitals of the fish are inconspicuous, but they are on the head. We will give up the details and move on to the next strange animal.
Portuguese (military) boat (or physicist)

This creature, regularly mistaken for jellyfish, is actually a cyphonopore. What the hell is it? This is an animal consisting of colonies of organisms that work together to function as a whole.
Japanese crab spider

This creature is one of the main fears of arachnophobic divers. These creatures have very long claws, 3.6 meters long! According to scientists, despite their somewhat fearful appearance, they are much more obedient, kinder and much less scary than many sea representatives with a much harmless appearance.
Shell

That's right. The shell shape is not very interesting, but 100{7be40b84a6a43fc4fae13304fce9a2695859798abfc41afd127b9f8b21c5f9c5} got the leader from this list. This is a sea animal that eats its brain. Like marine invertebrates, these creatures spend part of their lives in the larval stage, where they can swim in the water like fish or other moving animals.
This is a relatively short period in the life of the shell. At this stage you can't feed, so find a suitable place to swim and settle on the seabed.
Once you start feeding there. They also begin to absorb the mobility and organs of gills. After lunch there are eyes and chords (like spine). Finally the brain itself. Then the material is processed to create a whole new body system, including the digestive, reproductive and circulatory systems. Then the ischemic membrane multiplies, creating an entirely new individual. Isn't it strange?