Some of my friends and I went to our park. It rained recently and there was a lake in the middle of the park. We found some horseshoe-crab-like thing and we were wondering what it is. And if it is a horseshoe crab, how did it get there?

the mature adult size of a limulus polyphemus horseshoe crab is around 2 feet long and 1 foot wide. Males are smaller. I need to know how long a horseshoe crab is when it is caught and bled for biomedical purposes.

i am going into high school this year, and am starting a field report on spawning horseshoe crabs and the life cycle. i want to hatch my own, but wanted to know if it is illegal first….i don’t really feel like graduating in handcuffs. anyway, if you know, please answer. extra points for best answer.

The blood of the horseshoe crab is very valuable to the biomedical industry. The crab are caught, some blood taken, and released. Much like we donate blood. Our question, how much blood is in a crab and thus how much is extracted during one "donation"? Thanks!

65 gallon, wet dry, reef, lots of reef live rock. good deep sand bed, lots of alge, great heat, light and such. good circulation from 2 powerheads. I bought a cool horseshoe crab and 2 camel shrimp and 1 chocolate chip star fish, 2 3 stripe damsels, and 2 cute blue and gold damsels, . now what can I get thats cool interesting and will get along good with all the other fish I get. grow at the same rate, eat about the same foods, not eat each other, not …

Does anyone know how to take care of a horseshoe crab? i already know their diet (mostly worms, shrimp, etc.), but is there anything specific that they need? Should their tank be completely filled with water, or should their be a land area, too? Do they need a special type of water? How big should the tank be? Please, help!

floating on his side and hi es no moving much
is a salt water tank

what kind of plants do they need if they need any at all…im assuming most of the tank would have to be set up as a normal saltwater tank, but about how big a tank should i get for a little one.

I bought the damsels and a horseshoe crab to put in that 75 gallon tank. What will he eat? Do I need to put his food on the bottom? Will he be contant enough to just eat all the bristle worms I have in there. What fish can I buy now that will eat all the worms? The trap is not working so now what? Thanks for all your great input, you guys are GREAT!!!!
Thanks Josette. Great info. So I won’t have to feed him at all. He’ll eat after …

I bought these about… 5 years back?
They are like "sea monkeys", as to where you put little eggs in water and they hatch.
Except they grew into this little things that look similar to horseshoe crabs, just under an inche big.
Have you heard of them? Know what they are called? Where I can find them?