Crabs have an open circulatory system, which means that their blood passes through cavities, called sinuses. The sinuses are low pressure compared to the ...
Although they are called crabs, they are more closely related to spiders and scorpions, and their annual mating migration is an incredible sight to see. The ...
The Chesapeake Bay Blue Crab: Predators and Prey ... Invasive species, areas of low oxygen, and overfishing complicate the already intricate Chesapeake food web ...
Fast Facts. Horseshoe crabs are "living fossils" more closely related to spiders and scorpions than they are to crabs. Horseshoe crabs get their name from the ...
You will see a giant spider crab with missing legs attempt to catch a rattail fish prior to being captured by the submersible. Video courtesy of Peter Etnoyer, ...