there is a species of fish called the amazon molly that lives in rivers in southern texas and mexico that uses no male dna to produce offspring. all of the new fish that hatch are female.

if you are 35 or older and have never eaten sushi, there is less than a 5% chance that you ever will.

most goldfish have a memory of about 3 months. not 3 minutes.

goldfish can tell the work of one composer from another's.

in japan, it can take up to 20 years of training to become a sushi chef.

a 'blob' of water in the pacific ocean that is 4 degrees warmer than usual stretches from alaska to the bottom tip of mexico, and nearly as far west as hawaii. sea life, which is extremely sensitive to temperature changes, is fleeing before it. as a result, millions of crabs, anchovies, and other normally deep-sea creatures are showing up all along the western north american coast's beaches.

for every 1 degree celsius that ocean water rises, the average large-bodied fish decrease 20% to 30% in size. this is because warmer water holds less oxygen, and the respiratory systems of larger fish cannot keep a larger body oxygenated.

herring fish communicate by farting.

the opah is the only warm-blooded fish discovered to date.

a goldfish can see everything you can, plus everything in the infrared or ultraviolet spectrums, too.

according to the world trade organization, 31% of ocean species are being fished into extinction, and an additional 58% are being fished at the maximum level currently allowed by law.

in a little less than 50 years, there will be more plastic in the oceans than fish.

a sailfish can swim faster than a cheetah can run.

no triggerfish are born male. instead, the most masculine females metamorphose into males upon reaching adulthood, and any remaining females in their vicinity become their harem.

currently, 1 out of every 4 fish that we catch has plastic trash in their digestive tracts, regardless of where they were caught.

starfish spit their stomachs out to envelop prey, then slowly digest them. one species, labidiaster, has dozens of legs that are completely covered in teeth. wicked, pointy teeth.

giant squid sometimes eat baby whales.

herring communicate by passing gas.

more than half of the fish sold as 'tuna' in the u.s. are not tuna, and 87% of the 'red snapper'.

an octopus can squeeze through an opening not much bigger than one of its eyeballs.