When you think of barnacles you might think of small invertebrates stuck to rocks on a shore with a hard shell. But did you know that there are actually 900 species of barnacles!
If you're unfamiliar with horseshoe crabs, prepare for an intriguing introduction to one of the marine world's captivating species. The horseshoe crab, distinguished by its charming horseshoe-shaped exoskeleton, or carapace are living fossils that boast a history that predates the dinosaurs.
