Horse Shoe Crab

The horseshoe crab, or Limulus polyphemus, has populated oceans for well over 300 million years.  It even survived the extinction of the dinosaurs!  Interestingly, it is not a crab and is more closely related to spiders and scorpions.  It gets its name from its rounded head, which resembles a horse’s foot.  Horseshoe crab colouration varies from a light tank to dark brown.