Strange, cute sea creatures

Surely you will be surprised by the special and lovely and scary looks of the sea creatures: the pig's squid, velella jellyfish .

When we think of the ocean, we often envision creatures such as whales, dolphins or other normal animals. However, the vast ocean contains many interesting things that we have not yet discovered.

Besides the beautiful and mesmerizing creatures, there are also scary creatures. Each species has many unique characteristics that make the sea always the topic of attracting biologists as well as the explorers.

Here are some marine creatures that you may not have known.

1. Pig mine squid

Pig squid is a small squid species of Helicocranchia, living near the ocean surface at a depth of 100-200 meters. The average size of an adult squid is about 100mm.

Their bodies are made up of a large funnel with fins that function as small paddles. In addition, above the eyes of this squid also have small tentacles like curls.

The squid has grown in sex will lose some tentacles and turn to red. In its big funnel - or itself, the body contains a spine-like pad.

The three protrusions are the internal organs. In addition, pig-squid ink also has a glowing body behind big eyes, which makes it convenient to move in dark conditions like a button jar.

Currently, scientists are continuing to learn more about this lovely shaped squid. The most special thing is that pig powders are different from other squid species that they swim when the body is upside down.

2. Pyura chilensis

Pyura chilensis is a shellfish discovered by Juan Ignacio Molina in 1782. They belong to the class of Ascidiacea - an invertebrate species and cannot be moved.

P.chilensis wears a thick crust made of cellulose - a solid molecular matrix that allows them to attach their organs to the inner surface.

But not only is the hard shell, the inside of this armor is also padded with a cuticle and muscles. The main part of P.chilensis is on the inside.

P.chilensis is often found in the rising promontories at low tide in Chile and Peru. Their bodies have 2 syringes connected to the external marine environment, one to inhale and one to exhale.

They absorb food by inhaling water, filtering out edible microalgae through the throat-containing mucus, then breathing water back into the sea with the remaining syringe tube.

P. chilensis was born as a male in puberty to become bisexual and reproduce by throwing 'sperm and egg clouds' floating into the surrounding water.

If the collision between the egg and sperm succeeds, the tadpole will appear and eventually 'settle' into a certain rock to grow into an adult.

P.chilensis's blood is very pure but contains very high concentrations of mysterious and rare chemical elements called vanadium. This concentration may be 10 million times higher than the level found in seawater.

However, the question of why and how this animal can accumulate such a large amount of vanadium has yet to be explained by any scientist.

On Chilean beaches, P. chilensis is heavily caught and becomes a staple food. Ordinary fishermen use P.chilensis to cut slices into slices, then use their fingers to remove the meat from the shell. Their meat can be sold fresh or canned for export.

3. Velella jellyfish

Velella jelly (scientific name: Velella Velella) is a genus of water, floating on the ocean surface. They also have other names like 'raft on the sea', 'small sail' .

A mature velella of no more than 7cm in length, the body is usually dark green, transparent like a cellophane with a small hard sail above it to help it catch the wind and move on the sea surface.

Velella jellyfish are carnivores. They hunt plankton with tentacles containing toxins. Although these poisons may harm prey, it has almost no effect on humans because they cannot pass through the skin.

Velella Velella lives in warm and temperate waters in all oceans around the world. It never touches or even reaches the ocean floor, the only stage Velella sinks into the water is the larval stage.

4. Worms the Christmas tree worm (Christmas tree worm)

The worm is scientifically known as Spirobranchus giganteus, widely distributed throughout the world's tropical oceans, from the Caribbean to India-Pacific. They are often found when "plugging" into large coral reefs at the bottom of the sea.

As the name suggests, the most noticeable point of this worm is the two 'crowns' like two Christmas trees. These pine trees are responsible for transporting any creature stuck in it . the worm's mouth.

In addition, this is also their respiratory organ, working like 'bearing'. Like other worms, Spirobranchus giganteus has a tubular body, which surrounds it with lots of hair and very small limbs that help them move on the reef.

However, this worm is very sedentary, meaning that once it has found a place of interest, it will not move much. When startled, these Christmas trees can also quickly recede into the nooks of coral reefs to evade the danger.