http://www.k12.de.us/warner/birdrelationship.html

http://www.beach-net.com/horseshoe/Bayhorsecrab.html

http://www.aqua.org/animals/species/prhcrab.html

http://www.virtualbirder.com/vbirder/realbirds/dbhsc/HSCHarvest.html

http://www.dnr.state.md.us/fisheries/general/hscpix/hscmgmt.html

http://www.horseshoecrab.org/nh/eco.html

http://www.horseshoecrab.org/nh/spawn.html

1. Why is the horseshoe crab considered a "living fossil"?

Why has it survived for so long?

2. What types of bird species depend on the horseshoe crab?

Why do they depend on the horseshoe crab eggs?

How much time is spent feeding?

How much weight gain is needed to finish the migration route successfully? Also tell how many eggs a bird must consume and how many horseshoe crabs are needed per bird.

3. How many egg clusters does a female horseshoe crab lay each year?

How many eggs are in each cluster?

4. What are the current regulations for the harvesting of horseshoe crabs?

Currently, how many horseshoe crabs may be harvested in the state of New Jersey?

5. Using the graphs at www.virtualbirder.com , explain what caused the fluctuation (changes) of horseshoe crab landings in New Jersey/Delaware between 1950 and 1996.