A Moment of Science

11 Things You Didn’t Know About Fish

Why do fish have fins? Does water temperature affect fish temperament? And why have scientists sent a robot to live with the fish?

Goldfish swimming against a blue background

Photo: Andrew Pescod (flickr)

What are your favorite fish facts?

Fish lovers unite! A Moment of Science dug through the archive for the most fishy science stories we could find:

Cold Fish, Angry Fish?

It appears that humans aren’t the only animals that can have dog days in hot temperatures. Research has found that fish can have them too. Read More: Why Water Temperature Matters For Fish Personalities

Duke It Out!

Siamese fighting fish can be rather pugnacious. Males will engage other males in violent and turbulent clashes that can involve severe fin nipping, or worse. Read More: Siamese Fighting Fish Are Keeping Score

Colorblind And Fabulous

Cuttlefish are cephalopods, relatives of squid and octopuses, and are masters of camouflage. Using unique skin pigment cells, cuttlefish can rapidly change their skin color and pattern to blend in with the background. Amazingly, they do this despite being totally colorblind! Read More: Colorblind Masters of Camouflage

Female Fish Love A James Bond Character

Studies have shown that female fish are more attracted to risk-taker fish compared to timid fish. Read More: Female Guppy Fish Love Risk Takers

Changing Their Sex

Several kinds of fish not only can change sex, but do so as part of their normal reproductive cycles. Read More: Fish That Change Sex?

The Robot And The Fish

A computer-operated model of a three-spined stickleback has been appropriately named Robofish. This robot is disguised to look just like a real stickleback — well, at least real enough to trick the other fish! Read More: Undercover Robofish Studies Fish Behavior

CO2 And Fish Temperament

A study published this week shows that fish larvae exposed to elevated levels of CO2 in their larvae state are heedless to the scent of proximate predators. Read More: CO2 Binges During Larva State Befuddle Fish

Why Do Fish Have Fins?

We all know that prehistoric aquatic life slowly but surely made the journey to land above sea. But how and when did this transition occur? Read More: From Fish To Fins

I See Fishy Fish

Weakly electric fish use their electric organ discharges for two important functions–communication and navigation. Since many electric fish are nocturnal or live in murky water, they have evolved the ability to “see” their surroundings using electricity. Read More: Talking and Seeing with Electricity

Minnow Attack

If a minnow’s skin is damaged by an attacking pike, it releases a chemical that attracts more pike. Why would a minnow want to attract more trouble? Read More: For Minnows, A Suicidal Survival Strategy

Seeing In The Dark

Green sunfish make their home near the bottom of muddy ponds throughout the northeast United States.  Green sunfish can see quite well down here–well enough to hunt and avoid predators.  How? Read More: A Fishy Gaze

Margaret Aprison

Margaret is a graduate of Indiana University with a degree in Telecommunications and a minor in Psychology. The daughter of two scientists, Margaret has been surrounded by the subject her entire life. She enjoys social media, writing, television, and, of course, science!

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