1.
Horseshoe crabs blood can detect endotoxins.
33 points - added 12 years ago by JanetK -
2.
Horseshoe crabs have blue blood.
24 points - added 12 years ago by JanetK -
3.
Horseshoe crabs shells are being used to fill in cracks in human's broken bones.
19 points - added 12 years ago by JanetK -
4.
Horseshoe crabs can live to be 18 years old.
17 points - added 12 years ago by JanetK -
5.
The horseshoe crabs mouth is in between its legs.
16 points - added 12 years ago by JanetK -
6.
The female horseshoe crab lays more than 100,000 eggs per season.
The egg clusters are about the size of a golf ball.
3 points - added 12 years ago by JanetK -
7.
The horseshoe crab has 10 eyes.
3 points - added 12 years ago by JanetK -
8.
Horseshoe crabs have gills
3 points - added 12 years ago by JanetK -
9.
Horseshoe crabs closest relative is a tick.
Although it doesn't suck blood or bite its relatives include ticks, spiders and scorpions.
3 points - added 12 years ago by JanetK -
10.
Native Americans used Horseshoe crab shells as a hoe to dig into the dirt.
2 points - added 12 years ago by JanetK -
11.
Horseshoe crabs chew their dinner between there legs.
These creatures have no teeth or jaws so they crush their food between their legs before they put it in their mouth.
2 points - added 12 years ago by JanetK -
12.
Horseshoe crabs have five pairs of walking legs.
2 points - added 12 years ago by JanetK -
13.
Female horseshoe crabs are twice the size of the males.
2 points - added 12 years ago by JanetK -
14.
A horseshoe crabs shell is like a suit of armor.
It is made of a substance called chitin and the shell is thick and flexible.
2 points - added 12 years ago by JanetK -
15.
Horseshoe crabs are considered arthropods
2 points - added 12 years ago by JanetK -
16.
Horseshoe Crabs aren't crabs at all.
It is considered a distant relative.
2 points - added 12 years ago by JanetK -
17.
The horseshoe crab is considered a living fossil
Fossils of these animals have been found to be 155 million years old.
2 points - added 12 years ago by JanetK -
18.
Its hard flexible shell keeps the animal from drying out when it comes on shore.
1 point - added 12 years ago by JanetK -
19.
Horseshoe crabs were used as fertilizer during the 1860's
0 points - added 12 years ago by JanetK -
20.
Horseshoe crabs molt.
Much like snakes horseshoe crabs shed their skins.
-1 point - added 12 years ago by JanetK -
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