Have you ever heard about sand dollars? Do you know the sand dollar worth? The largest sand dollar measured around 5.82 inches was found in Florida, USA. The sand dollar weighed 153 grams, making up to 5.4 oz. To know more interesting facts like are sand dollars rare, read the full article!
1. What are Sand Dollars?
Sand dollars are a species of flat, burrowing echinoids from the order Clypeasterodia in the group Invertebrata. They are known by the names such as sea cookies, snapper biscuits, pansy shells, and sea urchins. They have a diet of carnivores. They are sub-circular and are spine coated, making them reddish-purple or brown in color. If you are wondering, are sand dollars rare or not, read the article till the end. (See How Much Is a Sand Dollar Worth?)
2. What is the Anatomy of Sand Dollars?
- The top surface of a sand dollar looks like a flower petal.
- The surface has five seats of tube feet extending from the petals, used for respiration in later stages.
- The movement of a sand dollar takes place through the spine present on the underside.
- Sand dollars are found in Saline environments.
- Adding to the fact, they prefer living in the sand using their spines for protection. They have densities ranging between 0.5 to 215 per 10.7 square feet. (See What does a Kraken Look Like?)
3. What does Sand Dollar feed on?
A sand dollar feeds on microscopic algae, copepods, planktons, detritus, crustacean larvae, and other animals. A sand dollar captures its food with the help of spines and pincers on its body surface. Cilia present also facilitates the movement to capture food. Also, check out what animal eats Bananas?
4. What is the Average age of a Sand Dollar?
The age of a sand dollar can be measured in the same way as we measure that of a tree. The rings can be counted to know the age of a sand dollar. The higher the number of rings, the older the sand dollar is. Thus, the average age of a sand dollar is 6 to 10 years. But if taken out alive, they would only be able to survive for a few minutes due to the presence of the tube-like structures for breathing. (See When is it Safe to Remove a Wasp Nest?)
5. How to find a Sand Dollar?
A sand dollar is most commonly found in the USA. Beachcombers are found at a low tide, especially after a storm. Sand dollars usually shuffle themselves in shallow waters. To find a sand dollar, stand in a few inches of water and move your feet back and forth gently. Keep them close to the ground and move in a shuffling manner. You would either find circular depressions in the sand or might feel up the shuffle on your feet. (See Where do Red Pandas live in USA?)
6. How to figure out if a Sand Dollar is Dead or Alive?
You need to watch out for the tiny spines when looking for if a sand dollar is dead or alive.
- Research has shown that the spines fall off as soon as the animal dies.
- Secondly, sand dollars change their color when they are alive. So, it changes to white, once they are dead.
- Next, if the animal is alive, it would leave behind a yellow stain on your fingers.
Moreover, it is advised not to take away sand dollars from their habitat, no matter being alive or dead. (See Slug Vs Snail)
7. Are Sand Dollars rare?
Some studies reveal that sand dollars are rare. Currently, the sand dollar is not listed as an endangered species but considering their significance, they are a souvenir for your own sand dollars story. If you are thinking about what is sand dollar worth, then they have little or no value. Their value ranges around USD 5 to 15, depending upon the variability range of the decor item you prefer. So, if you ask, are sand dollars rare, they are not but aesthetically, they are of high worth. However, the worth of the sand dollar monetarily is not so high. (See 10 Interesting Facts About Sea Lions)
8. Is it okay to take a live Sand Dollar off the Beach?
While discussing are sand dollars rare, you must note that a sand dollar not only plays the role of a souvenir but also filters detritus and debris from the sand floor. They act as a food source for sea stars, crabs, fish, and the occasional octopus. So, taking it off the beach can disrupt the cycle. Even when they are dead, they become a profound source of calcium carbonate to the ocean. Further, in most countries, it is illegal to take away a living sand dollar. (See What Dinosaur Has 500 Teeth?)
9. Why are they known as Sand Dollars?
They are known so as they appear like dollars and not because they value in terms of money. The color brightens once the animal dies, which adds to its luster. Some theories reveal that sand dollars look like ancient American dollar coins and so the reason behind the name lies in the color of a dead sand dollar. The dead sand dollar turns into a silver coin and hence, got its name. (Also read List of Names for Groups of Animals)