Central Disc of Starfish

Starfish have the capability of re-growing partial bodies or lost arms, after they experience an injury. They typically do this to either reproduce or heal wounds. If you cut a sea star into five sections, each containing a portion of its central disc and an original arm, five new sea stars will be born.

For the most part, a sea star can never clone itself except when the targeted clone has a section of the central disc. As the name suggests, the central disc refers to the center of the body of a starfish. A separated arm containing a portion of the central disc is going to produce a clone, though one without any part of the central disc won’t. However, a separated arm will sometimes re-develop some extra arm tissue.

Cloning with no central disc is very uncommon, but it has been observed by researchers in the Linckia diplax species. The thick, long separated arms of this type of starfish may sometimes develop a new tiny central disc containing four little arms, which all subsequently grow to optimal size. By and large, scientists are unsure whether this capability is only present in intentionally removed limbs, as take place in an asexual reproduction, or whether a limb separated during an attack or injury may as well develop an entirely new clone.

Feeding a Starfish

Nowadays, marine scientists call starfish “sea stars”, since they are actually not fish, but echinoderms. There are more than two thousand species of sea stars. Most of them have five arms, but others are blessed with up to forty arms. The stomach and mouth of the starfish are located on its bottom. These animals usually push their stomachs from their bodies, wrapping them around the food for digestion. When learning how to feed a starfish, identify what type your starfish More...

Starfish Facts on their Diet

Starfishes are among the most fun- looking marine animals that kids really want to pick when they go to the beach. Because of their appearance, people get more interested about these animals. One of the common questions about starfish facts that kids ask is about the food and the diet of starfishes. The diet of these sea creatures is actually quite interesting because of the variety of food that they eat. There are more than one species of starfishes in More...

Starfish Facts on Movement

Starfishes are definitely not popular for their speed. Majority of the species of starfishes can actually just cover a distance of less than 10 inches in a single minute. Even if their speed when moving is not something that might interest the people, the method on how they transfer from one place to another is certainly fascinating. These are some of the starfish facts that many people want to know more about. If you take a look at the underside More...

Starfish Facts on Regeneration

Some of the most fascinating starfish facts are about their abilities in regenerating arms that have been cut. First you must understand why there are instances where a starfish could be missing an arm. The starfishes can actually be bitten by a predator and was able to escape or the starfish voluntarily cut one of its arms so that the predator will be distracted and they can escape. There are also species that cut their arms to reproduce. The duration More...

Creating a Starfish Artwork

When considering making a starfish necklace, put a sheet of paraffin paper atop any plane surface. Use glue for drawing the starfish shape little enough to be used as a necklace pendant. Use a toothpick for fixing the shape, if you unintentionally mess up your drawing. Create a letter “V” out of a paper clip. Place both ends of this clip into the adhesive at the top of any of the arms of your starfish. Sprinkle glitter or sand lightly More...

Anatomy of the Starfish Facts

A lot of starfish facts talk about the anatomy of this sea creature. The shape of the common starfish which is what people perceive as a star is already interesting as it is. But if you look into the structure both internal and external parts of the starfish, you will really be fascinated by this animal. Just like humans, the starfish has different skin layers such as the epidermis and the dermis. But they also have an epithelium layer where More...

Locating a Starfish

If you want to find a starfish, go to a nearby rocky beach. Typically, starfish stick to underwater rocks near the seashore. This is the best area to locate these wonderful marine creatures. It is a good idea to look forward to low tide. It is at low tide that the sea reveals a lot of rocks, which have been underwater. In addition, it leaves behind rock pools where there is a vast variety of sea creatures. The best time More...

Dissecting a Starfish

When considering dissecting a starfish, you must understand that this creature is a sea animal with a proportional endoskeleton. It feeds on mollusks and moves with hundreds of extremely small tube feet. Now, prepare the necessary tools for dissecting the starfish. These include a probe, a scalpel, dissection tray, scissors and pins. You must wear goggles and protective clothing to cover yourself against debris. Pin your starfish into the tray in such a way that its top view faces you. More...

Starfish Facts

Starfish, also popularly recognized equally as sea stars, common name for 5 orders and about 1500 living species of marine invertebrate characterized by radially arranged arms having locomotory tube feet. Actually, starfish cannot be considered as fish in spite of the name provided to these sea animals. Some known starfish facts are that they belong to the group called echinoderms. They can be found in great numbers in the depths of the ocean and as well as in shallow waters. More...