Forty fun fish facts – try saying that 10 times fast, or better yet, check out this article and arm yourself with the knowledge to own any fish related trivia contest you ever encounter. From octopi to sailfish and everything in between, this list of interesting fish facts will be a fun read full of surprises.
1. Despite the well-spread myth of goldfish only having a 3 second memory span, recent studies have show that they can retain some information for up to five months.
2. Connecticut’s state fish is the American Shad.
3. The longest-lived fish on record was a Koi named Hanako who lived to be 226 years old.
4. The most popular fish kept as a pet is the Betta Fish.
5. The most commonly eaten fish worldwide is the Herring.
6. In the 1940s, swallowing whole live goldfish had become a bizarre yet popular fad. It ran so rampantly that Massachusetts eventually constructed a law forbidding the activity.
7. The fear of fish is officially known as ichthyophobia.
8. The ten oldest fish species still in existence today are the Hogfish, Lancetfish, Arowana, Frilled Shark, Sturgeon, Arapaima, Sawfish, Alligator Gar, Polypterus, Senegalus, and the Coelacanth.1
9. The smallest fish in the world is the Padeocyprus Progenetica. It’s also the world’s smallest vertibrate, with most of them being about half the length across a human fingertip. 2
10. Measuring up at an average of 65 feet in length, the Whale Shark is the world’s largest fish.
11. Despite its somewhat small size, Portugal consumes more fish and shellfish per year than any other nation.
12. The largest fish ever caught was an Atlantic Bluefin Tuna caught off the coast of Canada in 1979. It weighed in at a whopping 1,496 lbs!
13. Sharks have the best underwater vision of any animal.
14. Salmon is the healthiest fish to eat. It is packed with Omega 3 fatty acids which provide numerous health benefits.
15. Sushi and sashimi are NOT the same thing. Here’s a link to our sushi vs sashimi blog post which details the differences between the two.
16. The world’s largest striped bass ever caught weighed in at 81.88 lbs and was reeled in by Connecticut’s own Greg Meyerson.
17. The most expensive fish ever sold was a Bluefin Tuna sold in Japan for 155.4 yen. That’s about $1.8 million! 3
18. The biggest shellfish on Earth is the Giant Clam which can weigh up to 500 lbs and is most frequently found off the coast of Australia.
19. Not all oysters can produce pearls, but the ones who can are able to produce many different varieties. Here’s a link to our blog post about how oysters form pearls.
20. To answer the age old question, yes, fish do sleep. However, they do not obtain the same level of unconsciousness equal to that of humans.
21. The marine animal with the largest eye (in fact, the largest eye of any animal) is the Giant Squid.
22. Not all fish hatch from eggs – some are born live. Regardless of their method of entering the world, the process of a fish leaving the body of its mother is called “spawning”.
23. Lobsters are so delicious that even they can’t resist their flavor. Lobsters are among the most notorious sea creatures when it comes to cannibalism.
24. Lobsters aren’t just red. They can also come in the colors of blue, yellow, green, and white. In even rarer cases, they can feature 2 different colors, split right down the middle of their shell.
Some tasty fried smelt, all ready to be eaten
25. The soft, green substance you find in a lobster’s body cavity after removing the tail is called tomalley and it serves as the lobster’s liver.
26. Clams cannot see very well, but they are able to detect changes in the amount of light or darkness in their surroundings.
27. The expression “happy as a clam” originates from the longer phrase “happy as a clam at high water”. This is because during high tide, clams are safe and free from predators.4
We assume that this probably makes them pretty happy.
28. If your birthday falls between February 19th and March 20th, then your astrological sign is Pisces, the sign of the fish.
29. There are nearly 800 different species of eels.
30. The fastest moving fish is the Sailfish, which can swim at speeds of 68 miles per hour. Lucky for them, there are no speed traps in the ocean.
31. Whales, dolphins, and porpoises are mammals and not fish. All three breathe air, are warm blooded, and nurse their young.
32. The red chunks of fish that you find in a standard seafood salad are Pollock meat.
33. Every octopus has three hearts.
34. Most octopi do not live very long lives, with the majority of species only living between 6 months and 5 years.
35. While sharks are known to eat humans, humans can eat sharks as well. A very popular dish in China is shark fin soup, which is often served during special occasions.
36. A Great White shark can have up to 50,000 teeth over the course of its lifetime.
37. The Horseshoe Crab is not actually a crab at all. However, they are such an old species that they are classified as being living fossils.
38. In Hawaii, the Mahi Mahi is referred to as “Ono”.
39. While the Mahi Mahi is also known as the Common Dolphinfish, they are of no relation to actual dolphins.
40. The Cuttlefish stuns its prey by putting on a lightshow with its external flesh that rivals anything you might see out on the Las Vegas strip.
1. B, Tyler
Top 10 Prehistoric Fish Alive Today
Listverse May 14, 2010
2. Author Unavailable
Smallest Fish in the World
3. Boehler, Patrick/span>
Japan: World’s Most Expensive Fish Sold for $1.8 Million
Time.com January 7, 2013
4. Author Unvailable
As Happy as a Clam