Sand dollars do not mate. They spawn, i.e they shed their sperm/eggs in the water in groups. The spawning happens between August-November.
Sand Dollars do not keep their babies with them. The babies are free floating from the time they are born. The Sand dollars do not even have gestation period for they just release the ripe eggs and sperm to be fertilized outside.
The first sand dollars formed during the period Paleocene. After that they diversified during the Eocene period.
over time it will evolve depending on its environment
Sand dollars have these cilia or hair-like structures underneath them that are used like legs. They are used for locomotion and if they are not moving (especially for a long period of time), they are probably dead by then.
Sand dollars are marine animals that belong to the echinoderm family. They are formed through a process called metamorphosis. Initially, sand dollars start as larvae in the water, and as they grow, they develop a hard exoskeleton made of calcium carbonate. This exoskeleton eventually becomes the familiar round, flat shape we associate with sand dollars. Over time, the sand dollar's body adapts to its environment, allowing it to burrow into the sand and feed on small particles.
Usually, you would spend about 30 to 40 dollars although you can find good deals from time to time around the range of 10 to 15 dollars.
Sand and Glass
You can find more sand with Treasure Charts and by finishing the boss inside of a Temple.
Find a quick and short minigame that you are good at. Example-I play DJ Candy's game on easy and get at least 2000 dollars each time.
When a women sand dollar and a man sand dollar love each other very much they wrestle around on the beach.
An hourglass uses sand to measure time. Sand flows through a narrow passage between two glass bulbs, with the amount of sand left indicating how much time has passed.
Either time OR a centrifuge.