Fact Of The Post
In 2006 a new species of sea urchin was discovered through eBay after photos were uploaded and discussed by a group of collectors.
There are over 200 species of sea urchin and they are still being discovered today.
These creatures are an important part of the ocean’s ecosystem and unfortunately, certain urchin species are facing new threats every day.
Urchins are beautiful creatures of the sea that can be found in many places across the globe.
Here, today we discuss the top 9 unbelievable facts about urchins that you probably didn’t know.
Sea Urchins Facts
💪💪💪 Let's Start Reading Facts 😤😤😤
1. Some fish can build up immunity to the flower urchin’s venom.
The clownfish is one of the only species that purposefully try to build immunity to the flower urchin’s venom.
Clownfish will dance around the flower urchin, lightly brushing itself against the spines.
This means they are exposed to a small amount of venom, but not enough to kill them.
After repeating this a few times they become immune to the venom.
You might be wondering why they choose to do this and the reason is so they can eat the parasites that live on the flower urchin.
This relationship is beneficial to both creatures as the clownfish gets food and the flower urchin has its parasites removed.
2. Sea urchins have just 5 teeth!
Sea urchins are omnivores and have just 5 teeth, which are held together in the center of ittheirody.
Each tooth has its own jaw to keep it in place; this means it can move more freely.
The teeth are made from calcium carbonate and they also have a tongue-like structure alongside them which gives them a beak-like mouth.
Urchins mostly feed on algae found on rocks or corals, as well as any debris or decomposing matter from fish or sea creatures.
3. The red sea urchin is the largest of the species.
In general sea urchins grow to be around 1.18 inches (3 cm) to 3.93 inches (10 cm).
The red sea urchin is the biggest of the species and it will enter adulthood when it reaches 1.96 inches (5 cm) in diameter.
It will then continue to grow until it reaches around 3.93 inches (10 cm), whereas most other sea urchins will stop growing around 1.96 inches (5 cm).
The red sea urchin can be found in the North Pacific Ocean, from as far north as Alaska, to as south as Baja, California.
4. Urchins make for a tasty snack, not just for animals but humans too.
Not only are there species that eat the parasites off of the urchins, but there are also animals that eat them whole!
Sea urchins have quite a few predators which are surprising given their spines and sometimes venom.
The sea otter is one of their biggest predators; they will eat as many as they can get their hands on.
Some of the most common predators are crabs, large fish, eels, and even birds.
Urchins also have the threat of humans, urchins and in particular, their row (eggs) are seen as a delicacy in many places.
This threat has caused a large decrease in the population and has caused some species of sea urchins to become endangered because of overfishing.
5. Urchins have hundreds of tiny feet.
Sea urchins have 5 paired rows of tubular tiny feet called pedicellariae.
These tiny rows are located between the spines.
Each foot is a small sucker-like shape that allows the urchin to grip surfaces to pull itself along.
The suckers are also useful to help catch food and attach themselves to the ocean floor.
6. They have zero bones in their body.
Unlike humans, they don’t rely on a bone structure to support their bodies.
Urchins have a shell-like structure which is called a “test”.
The hard shell made from calcium carbonate is similar to that of starfish and sand dollars and is their main form of protection.
The structure consists of small plate segments that enclose the urchin; it looks a bit like the segments of an orange.
As well as the “test” they have spines that help them protect themselves from predators.
7. A species of sea urchin was discovered through eBay!
In 2006 British marine biologist Dr. Simon Coppard came across an urchin for sale on eBay that he had never seen before.
He was aware of the species' existence since 2004 when a group of budding shell collectors had been discussing online, sightings of the brightly colored urchin.
Coppard was working with The Natural History Museum in London in the department of identifying and naming new species.
He was able to confirm from the photo uploaded onto eBay that the species was unidentified, making it a new discovery of sea urchin.
After his discovery was published, he was approached about naming the new species.
It was given the scientific name Coelopleurus Exquisitus also known as The Exquisite Urchin.
This name was given because of its natural beauty and bold colorful patterns.
8. Sea urchins can live for up to 200 years in the wild.
The oldest living species found was the red sea urchin which was dated to be around 200 years old.
In captivity, their life expectancy is reduced to around only 30 years, while in the wild is usually over 30 years.
It is possible that the species was able to live longer in the past but due to the ever-changing conditions of the ocean, it has become harder for urchins to survive.
9. The flower urchin is the most dangerous in the world.
Toxopneustes pileous, known to most as the flower urchin is the deadliest of all.
As described in the Guinness Book of Records, the flower urchin contains deadly venom, which can kill a human.
Its venom contains two poisonous elements; Contracting A, which can cause red blood cells to clot and can cause muscle spasms.
The other element is Peditoxin which can cause anaphylactic shock, convulsions, and death.
When a human or animal steps on, touches, or brushes past the flower urchin, its “flower-shaped” spines will break or pierce the skin of the predator.
This means that the venom can then enter the bloodstream.
Although they are a threat, with adequate treatment, you will survive a sting.
The flower urchin is most commonly found in the Indo-West Pacific region.
Sea Urchins Trivia Questions And Answers 😲😲😵
Can urchins kill you?
Ans: Their stings can be extremely painful and can cause extensive damage to the skin, tissue, and even bone. ... Most sea urchin stings do not kill you. However, they can result in serious complications if left untreated. Some people may develop an allergic reaction, especially if they are allergic to other stings or bites.
Do sea urchins have brains?
Ans: Although sea urchins don't have brains, "it could be their entire nervous system more or less acts as a brain," Johnsen said. ... It's hard to examine their nervous systems since their nerves are very, very small and the animals are more or less made of rock."
How fast is a sea urchin?
Ans: The average speed of the trialed sea urchins (Figure 4) was 3.85cm/min on acrylic plate, 2.82cm/min on 48 μm sandpaper, 2.46cm/min on 74 μm sandpaper, and 1.75 cm/min on 177 μm sandpaper. Figure 5 shows the average movement speed for all the sea urchins analyzed according to the roughness of the tank substrate.
Do sea urchins bite?
Ans: Sea urchin stings are immediately painful. They often leave puncture wounds on the skin, which can easily become infected if not treated immediately. The stung area may become red and swollen. If the skin is punctured (which is common), the puncture site is often a blue-black bruised color.
What is the most poisonous sea urchin?
Ans: flower sea urchin
Sea urchins will continue to be an important element of the ocean and make up the diet of a large percentage of the ocean.
With increasing fishing from humans and the oversaturated pollution of the oceans, we are putting these critical species in danger.
Over time their habitat is becoming destroyed and some of the urchin species have been listed as endangered.
With your help to reduce pollution, we might see a rise in the numbers of these fascinating ocean creatures.
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