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The Four The Four SpeciesSpecies
Where in Where in the World?the World?
Structure Structure & Function& Function
Human Human ConnectionConnection
ss
Name that Name that ScientistScientist
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International HSC Double International HSC Double Jeopardy!Jeopardy!
the most abundant and well-protected of the four HSC species
Answer:
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What is Limulus polyphemus?
females of this species feature 3 long spines on
each side of the opisthosoma
Answer:
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What is Tachypleus tridentatus?
Question:
produces the largest eggs of the four
species
Answer:
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What is Tachypleus
gigas?
practices polyandrous (multiple males fertilizing the eggs of one female) mating
strategies
Answer:
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What isLimulus
polyphemus?
species associated with tetradotoxin poisoning from consumption by humans?
Answer:
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What is Carcinoscorpius rotundicauda?
a museum shaped like and dedicated to the horseshoe crab
can be found here
Answer:
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What is Japan?
bounties were once offered in this U.S. coastal area for turning in the tails of dead
HSCs
Answer:
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What is Cape Cod?
HSCs are used for bait in the octopus
fishery here
Answer:
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What is Mexico (or the
Yucatan)?
Question:
HSCs are celebrated in these countries during
Chinese Valentine’s day events
Answer:
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What is Hong Kong, Taiwan
and/or China?
Buddhist “Blessings of horseshoe crab” events
have been held here each of the last 6 years
Answer:
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What is Delaware Bay (USA)?
these structures enable the HSC to detect UV light for adjusting its sensitivity to
light at night
Answer:
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What are the median eyes(or simple eyes)?
female HSCs use these versatile appendages to
mold their eggs into clusters
Answer:
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What are the pusher legs
(or feet)?
photosensors in this structure assist the HSC
in maintaining its day/night 24-hour clock
Answer:
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What is the telson?
chitinous spines inside this organ help the HSC
break down its food
Answer:
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What is the crop-gizzard
(or proventriculus)?
name for special sensory organ located at the base of the HSC pusher leg above its
gills
Answer:
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What is the flabellum?
a few years ago, Asian HSCs were being imported to the
United States for use as ____.
Answer:
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What isbait for eel & conch (whelk) fisheries?
Question:Question:
over 100 years ago on Delaware Bay, HSC eggs were shoveled up by the wagonload
for use as
Answer:
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What islivestock feed (or feed for hogs & chickens)?
Japanese mythology holds that the spirit of these people are embodied in the shells of
HSCs
Answer:
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What are Samurai warriors?
in the 1970's, University of Delaware researchers spun chitin
filaments from HSCs for use in ____.
Answer:
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What areburn wraps & surgical
sutures?
An Indian researcher recently discovered potential use of the
fluid inside the HSC egg for ____.
Answer:
What are organ transplant or tissue regeneration
therapies?
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noted for his ground-breaking, Nobel Prize winning research on horseshoe crab vision
Answer:
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Who isDr. Keffer Hartline?
renowned world authority (after 60+ years of dedicated study) on Limulus polyphemus
Answer:
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Who is Dr. Carl Shuster?
two researchers recognized for their extraordinary
collaboration on the discovery of LAL
Answer:
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Who are Dr. Fred Bang & Dr. Jack Levin?
most honored Japanese HSC scientist for lifelong
pioneering research on T. tridentatus
Answer:
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Who is Dr. Koichi Sekiguchi?
Question:Question:
noted for developing a synthetic, genetically-
engineered version of LAL called 'Factor C'
Answer:
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Who isDr. Jeak Ling Ding?
