Horseshoe Crab, Limulus polyphemus

An icon of coastal New England, the horseshoe Crab is basically a living trilobyte. If you've ever had a flu shot, know someone with a pace maker or joint replacement, or have given your pet a rabies vaccination, you owe a debt of gratitude to the horseshoe crab. All kinds of medicines were originally checked for safety using a test that comes from the blood of horseshoe crabs! These large 5" x 7" high quality art cards are printed on card stock, come pre-folded, packed in a clear sleeve per 10 cards, and include one white envelope for each card. Cards are blank inside for a personalized message. Printed on recycled paper.