Sea Hare Pictures:
Shaped like a rabbit, with one front and one back of its head, only without hair. It has two pairs of antennae, the rear antennae are longer, when it does not move, it looks like a squatting on the ground with a pair of big ears of the small white rabbit, and thus was first called the sea hare by the Romans. Later, it was recognized by the world, and the sea hare got its name.
The Japanese call it the "rain tiger". It is a mollusk, a gastropod. The two pairs of antennae on the head of the sea hare are divided into two pairs of tentacles: the front pair is slightly shorter and specializes in the sense of touch, while the back pair is slightly longer and specializes in the sense of smell.
Sea hare crawling on the seabed, the back of the pair of tentacles separated into a "eight" shape, forward diagonally stretched out, sniffing around the smell, resting this pair of tentacles immediately together, straight up, just like the rabbit's two long ears. The shape is similar to that of a rabbit. It is a kind of snail, and there is another name for it, sea slug.
The shell has degenerated into an inner shell and common gastropods (such as abalone, snails, snails) is different: there is no calcareous shell, only a layer of thin and semi-transparent cuticular membrane covering the body (which is the same as slugs, so it is also known as sea slugs).
Expanded Information
The sea hare prefers to live in environments with clear water, open currents, and clumps of seaweed, and feeds on a variety of seaweed. It has a very special set of enemy-avoidance skills, which is to eat what color seaweed will become what color.
For example, a kind of sea hare eating red algae body is rose red, eat inkhorn algae sea hare body is brownish green. Some sea hares also have fluffy and dendritic protrusions on their body surface, which makes the hare's body shape, color and pattern very similar to the seaweed in its habitat, thus avoiding a lot of trouble and danger for itself.
The sea hare is capable of both passive avoidance and active defense. There are two kinds of glands in the sea hare's body, one is called the purple gland, which is born under the edge of the outer coat membrane, and when it encounters the enemy, it can release a lot of purplish-red liquid, which can dye the surrounding seawater purple, so as to escape from the enemy's sight.
There is also a poisonous gland in the anterior part of the coat membrane, which can secrete a slightly acidic milky liquid with an unpleasant odor, and the other party will be poisoned and injured or even die if they come into contact with this liquid, so the enemy will escape immediately when they smell this secretion.