Trivia Quiz on Cephalopods
Tuesday, November 25, 2025
A ready-made nature and science quiz that you can use in virtual and in-person events (Zoom, Teams, YouTube Live, Twitch, conferences, meetings, classrooms, etc.)
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Dive into the alien world of octopuses, squids, cuttlefish, and nautiluses with a fast-paced cephalopod challenge. From blue blood to record-breaking eyes, see how deep your ocean knowledge really goes.
This team-friendly cephalopod trivia plunges players into the remarkable biology and behavior of octopuses, squids, cuttlefish, and nautiluses. Perfect for classrooms, aquarium nights, marine biology clubs, science outreach events, or as a lively icebreaker in remote meetings, it works seamlessly on Zoom, Microsoft Teams, Google Meet, YouTube Live, Twitch, Kick, and more. Play in groups or head-to-head, share your screen, and let players debate which animal has the largest eyes, how many hearts an octopus has, and why their blood appears bluish-green. With multiple-choice questions and optional leaderboards, you can set a quick-fire pace or slow it down for discussion and teachable moments. Duplicate the quiz in one click, shuffle questions, assign team captains, and keep score between rounds to crown your ocean champions. Whether you’re entertaining a mixed-knowledge crowd or testing dedicated marine enthusiasts, this quiz balances fun facts with surprising depth for an engaging group experience.
1. Which animal secretes the pigment sepia
A) Cuttlefish
B) Squid
C) Octopus
D) Nautilus
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2. A belemnoid is what sort of shape in zoological terms
A) Conical
B) Dart shaped
C) Globular
D) Cylindrical
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3. Which animal has the largest eyes
A) Giant squid
B) Colossal squid
C) Sperm whale
D) Nautilus
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4. How many hearts has an octopus
A) Two
B) Four
C) One
D) Three
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5. What color is the blood of an octopus
A) Pale bluish-green bluish green
B) Blue
C) Green
D) Red
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6. A squid found in New Zealand had the biggest what ever seen
A) Eye 12 inches
B) Tentacle length 16 feet
C) Beak width 1.5 inches
D) Eye 15.75 inches
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7. How many tentacles does a squid have
A) Eight
B) Two
C) Twelve
D) Ten
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8. The giant __________ is the largest creature without a backbone. It weighs up to 2.5 tons and grows up to 55 feet long. Each eye is a foot or more in diameter.
A) Octopus
B) Squid
C) Cuttlefish
D) Nautilus
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9. How Many Hearts Does An Octopus Have?
A) Two Hearts
B) Three Hearts
C) Four Hearts
D) One Heart
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10. Which Animal Has The Largest Eyes?
A) Owl
B) The Giant Squid
C) Colossal Squid
D) Blue Whale
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11. A giant Pacific __________ can fit its entire body through an opening no bigger than the size of its beak.
A) Whale
B) Octopus
C) Squid
D) Jellyfish
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12. The color of the blood of an __________ is bluish_green.
A) Octopus
B) Squid
C) Horseshoe crab
D) Cuttlefish
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13. When under extreme stress, such as when held in captivity, some octopuses will eat their own arms, which __________
A) die off
B) shrivel
C) Grow back
D) migrate away
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14. Which animal has the largest eyes?
A) Colossal squid
B) Giant squid
C) Ostrich
D) Blue whale
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15. The pupil of an octopus's eye is __________
A) Round
B) Oval
C) Vertical slit
D) Rectangular
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16. The ancient nautilus is considered the most intelligent of the invertebrates; it is said to have been as intelligent as a __________
A) Young dog
B) Young parrot
C) Young dolphin
D) Young cat
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