How Do You Say the Plural Form of 'Octopus'?

iStock.com/richcarey
iStock.com/richcarey

Few people have seen more than one octopus in the same place at the same time—they’re usually solitary creatures, after all—but let’s suppose you did. What would you call them? Octopi? Octopuses? Perhaps octopodes? People have been quibbling over the correct plural form of octopus for well over a century, according to the Merriam-Webster dictionary, and it’s still a sore spot among word-lovers.

Quartz argues that only one way is grammatically correct—and it’s not octopi. Octopus stems from the Greek word oktopous, and technically, Greek words ending in -pus (like platypus) should be made plural by adding -podes (meaning feet) to the end. Latin words, on the other hand, are sometimes made plural with an -i ending—like stimuli and syllabi, for example.

Since the word octopus was originally Greek, it seems only logical that its plural form would be octopodes. Similarly, rhinoceros should become rhinocerotes, and stadium should become stadia. However, using these pretentious plural forms for the sake of grammatical purity would be absurd. Most words that enter English are pluralized according to the rules of English, rather than the rules of their “native form,” Merriam-Webster explains.

That leaves us with octopuses. Indeed, this form is perfectly correct, but some people still cringe when they say it. In the late 1800s, an article entitled “Octopus Philology” declared, “Some daring spirits with little Latin and less Greek rushed upon octopi; as for octopuses, a man would as soon think of swallowing one of the animals thus described as pronounce such a word at a respectable tea-table.” The article went on to recommend the use of octopods, which, fortunately, didn't stick.

However, both Merriam-Webster and the Oxford English Dictionary list octopi as an acceptable plural alongside octopuses. (Octopi is also a valid Scrabble word.) As the dictionary advises, "If you're interested in choosing the word that is most likely to be considered correct and understandable by your audience you would do well to opt for either octopuses or octopi."

So next time, go easy on the internet stranger in the comments who has just written octopuses—they're not wrong.

[h/t Quartz]

Guess the Places These Foods Were Named After

What's the Difference Between a Rabbit and a Hare?

iStock.com/Carmen Romero
iStock.com/Carmen Romero

Hippity, hoppity, Easter's on its way—and so is the eponymous Easter bunny. But aside from being a magical, candy-carrying creature, what exactly is Peter Cottontail: bunny, rabbit, or hare? Or are they all just synonyms for the same adorable animal?

In case you've been getting your fluffy, long-eared mammals mixed up, we've traveled down the rabbit hole to set the record straight. Although rabbits and hares belong to the same grass-munching family—called Leporidae—they're entirely different species with unique characteristics. It would be like comparing sheep and goats, geneticist Steven Lukefahr of Texas A&M University told National Geographic.

If you aren't sure which animal has been hopping around and helping themselves to the goodies in your vegetable garden, take a closer look at their ears. In general, hares have longer ears and larger bodies than rabbits. Rabbits also tend to be more social creatures, while hares prefer to keep to themselves.

As for the baby animals, they go by different names as well. Baby hares are called leverets, while newborn rabbits are called kittens or kits. So where exactly do bunnies fit into this narrative? Originally, the word bunny was used as a term of endearment for a young girl, but its meaning has evolved over time. Bunny is now a cutesy, childlike way to refer to both rabbits and hares—although it's more commonly associated with rabbits these days. With that said, the Easter bunny is usually depicted as a rabbit, but the tradition is thought to have originated with German immigrants who brought their legend of an egg-laying hare called "Osterhase" to America.

In other ambiguous animal news, the case of Bugs Bunny is a little more complicated. According to scientist and YouTuber Nick Uhas, the character's long ears, fast speed, and solitary nature seem to suggest he's a hare. However, in the cartoon, Bugs is shown burrowing underground, which doesn't jive with the fact that hares—unlike most rabbits—live aboveground. "We can draw the conclusion that Bugs may be a rabbit with hare-like behavior or a hare with rabbit nesting habits," Uhas says.

The conversation gets even more confusing when you throw jackrabbits into the mix, which aren't actually rabbits at all. Jackrabbits are various species of large hare that are native to western North America; the name itself is a shortened version of "jackass rabbit," which refers to the fact that the animal's ears look a little like a donkey's.

A jackrabbit
Connor Mah, Flickr // CC BY-SA 2.0

As Mark Twain once famously wrote about the creature, "He is just like any other rabbit, except that he is from one-third to twice as large, has longer legs in proportion to his size, and has the most preposterous ears that ever were mounted on any creature but the jackass." (Fun fact: Black-tailed jackrabbits' extra-long ears actually help them stay cool in the desert. The blood vessels in their ears enlarge when it gets hot, causing blood to flow to their ears and ridding their bodies of excess heat.)

Rabbits, hares, and jackrabbits all have one thing in common, though: They love a good salad. So if you happen across one of these hopping creatures, give them some grass or weeds—and skip the carrots. Bugs Bunny may have loved the orange vegetable, but most hares and rabbits would prefer leafy greens.

Have you got a Big Question you'd like us to answer? If so, send it to bigquestions@mentalfloss.com.

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