They are not harmful although baby dollars clone themselves when they sense danger.
Sand Dollars are about the size of a grown human hand when fully grown. They cannot eat humans.
Sand dollars do not have any direct effect on humans. However, they play a role in marine ecosystems by feeding on detritus and algae, which helps in maintaining the balance of the ecosystem. In some cultures, sand dollars are collected as souvenirs or used in crafts and jewelry.
no they can but humans can get sick with the poison
Sand dollars have blunt spines that will neither "poke" you nor poison you. They are safe to handle. You can read more about this relative of the urchin by using the link below.
In the sand
You can not cheat to get sand dollars. You have to work for it, or you have to buy it.
Poison ivy is a plant that can cause skin irritation and allergic reactions in humans. There are no known benefits of poison ivy to humans.
No.
It depends on what poison you eat. :-)
Sand dollars.
Sand dollars breathe through a process known as diffusion, using their tube feet.
sand dollars got there name because they are shaped like a coin and they dig themselves into the sand