One of these things is not like the others

Produce in disguise: 10 fruits and vegetables that are not what they seem


Published on December 10, 2025


Image: Alexandr Podvalny

The classification of food can be challenging because it often relies on subjective criteria. Not everyone utilizes ingredients in the same way or for the same purposes, so how we see these items is influenced by cultural and social factors.

An example of this is what produce we consider to be a fruit, a vegetable, or a nut, which doesn’t always align with its botanical classification. Let’s look at some fruits and vegetables that are not what they seem to be.

1

Tomato

Image: Dan Gold

Let’s start with a classic. Most people know that tomatoes are a fruit commonly used as a vegetable (The U.S. Supreme Court once had to rule on this due to customs regulations). They have seeds surrounded by a fleshy pulp. But did you know that tomatoes are actually berries? Botanically, ‘berry’ is used for all fruit without a pit or stone where each flower develops into a single fruit.

Tomatoes are part of the Nightshade family, meaning they are related to chillies, potatoes, and the tobacco plant.

2

Avocado

Image: John Vid

This one is for all the avocado toast lovers: Avocados are a fruit. A berry, more specifically. While in Western countries avocados are used in savoury preparations, many cultures around the world use them in desserts and sweet drinks.

But aren’t berries fruits without a stone? One would think that the stone is hard to miss in this case. Botanists are still arguing on this one, but the general consensus is that the avocado seed does not fulfill the requirements to be considered a stone. Some common plants that you might not know were related to the avocado are the bay laurel and the cinnamon tree.

3

Peanut

Image: Ashes Sitoula

A staple in the nut/dried fruit category, peanuts are neither fruits nor nuts in a botanical sense. They are actually the seed of a legume, but even then, they are unique because they are the only legume that develops underground.

Peanuts are classified and treated as nuts for culinary purposes, so people often think that a peanut allergy is the same as a nut allergy, but these are two very distinct (although dangerous) reactions. As part of the Fabaceae family, peanuts are related to soybeans, chickpeas, lentils, and peas.

4

Zucchini

Image: Mockup Graphics

Zucchinis are used as a vegetable, but they are multiseeded, fleshy, and have an edible outer layer. Rings any bells? That’s right, zucchinis are a type of berry. A member of the Cucurbitaceae family, they are relatives of cucumber, squash, watermelon, and the luffa (yes, the one used in the shower).

As an ingredient, zucchinis are usually harvested before they mature, because ripe zucchinis have tougher skin, harder seeds, and are bitter.

5

Corn

Image: Andre Ouellet

Also known as maize, corn is used in savoury and sweet preparations alike. Classified as a grain for culinary purposes, it is actually a grass that bears fruit. So, technically, corn is a fruit.

But where are the seeds and the skin? In the grass (Poaceae) family, each flower has a seed that fuses with the skin and forms a kernel. Other relatives that behave in the same way are wheat, rice, sugarcane, and barley.

6

Mushroom

Image: Transly Translation Agency

Mushrooms are vegetables in a culinary sense, and a "fruit" body in a botanical sense, but they are neither vegetables nor fruits, because they are not plants. Culinary mushrooms are edible fungi, and as such, they have a totally different classification.

Mushrooms are not the only fungi that have culinary uses: other cases include yeast used for leavening or alcoholic beverages, fermented foods, or the mold used for blue cheese.

7

Rhubarb

Image: kaori nohara

Rhubarb is a vegetable, but is traditionally used for tarts, jams, and other sweet desserts. The only edible part of the plant is the stalk, as the leaves can be toxic.

Edible rhubarb is a hybrid, and it’s not closely related to other edible plants, although it is a distant relative of buckwheat.

8

Bell Pepper

Image: Nick Fewings

Also called capsicum or sweet pepper, bell peppers are a berry of the Nightshade family (which makes them a relative of tomatoes and potatoes). Although they are classified as berries, they lack one of their main characteristics: instead of having seeds surrounded by fleshy pulp, plants in the capsicum species are hollow.

Fun fact: plants in the capsicum species have no relation whatsoever to the pepper spice, but they were given that name because Europeans used the word ‘pepper’ for all plants and spices that were pungent.

9

Strawberry

Image: Oliver Hale

Despite their name, strawberries are not berries in the botanical sense of the word, because they develop multiple fruits from each flower, and they don’t have seeds (even if they look like they do). Historically, the English language has used the word ‘berry’ for any small, brightly colored, and juicy edible fruit.

So, where do strawberries come from? They are a hybrid, and they belong to the Rosaceae family, which makes them a relative of apples, cherries, peaches, almonds, and roses.

10

Cashew

Image: Kischmisch

From a culinary point of view, cashews are classified as nuts. But nuts, in their botanical sense, are fruits protected by a hard shell that doesn’t open on their own. Cashews are actually drupes, or stone fruits.

In this case, what we eat is the seed of the cashew fruit. As a member of the Anacardiaceae family, cashews are related to mangoes, sumac, and (by a more recent classification) to pistachios.


10 weird historical events that no one has been able to explain (yet)


Published on December 10, 2025


Image: Walters Art Museum, Public domain, via Wikimedia Commons

Who doesn't like a good mystery? And if the mystery isn’t a work of fiction but the result of a true story, even better! The great unsolved enigmas of history are absolutely fascinating. Some have been solved over time, but there are still many old secrets for which neither scientists nor historians have found an explanation—yet. Time-travel with us as we uncover 10 of the biggest historical mysteries that will probably never be cracked!

1

A ghost island

Image: Tanner, Henry S., Public domain, via Wikimedia Commons

Bermeja Island is mentioned in navigation texts written by European travelers and appears in cartography from the 16th to 19th centuries. Old maps place it off the north coast of the Yucatán Peninsula; however, multiple searches over the years have yielded no concrete evidence of its existence.

So, what happened to Isla Bermeja? Was it a cartographic error? Did it sink due to a tidal wave? Because of its geopolitical significance, some have even suggested that it was blown up by the CIA! A 2009 study by the Autonomous University of Mexico concluded that Isla Bermeja does not exist today, nor were any traces found at its supposed coordinates. Yet, it will forever remain a mystery that will surely keep many entertained.

2

The longest alien signal ever

Image: Credit: Big Ear Radio Observatory and North American AstroPhysical Observatory (NAAPO)., Public domain, via Wikimedia Commons

In 1977, Ohio State University’s Big Ear radio telescope, used in the search for extraterrestrial intelligence, detected a signal now known as the Wow! signal. While reviewing the data, astronomer Jerry R. Ehman noticed a sequence represented as "6EQUJ5." Baffled by the anomaly, he circled it and wrote "Wow!" in the margins.

The signal lasted 72 seconds and, unfortunately, has never been repeated. To this day, no one can fully explain the phenomenon, although some suggest it may have come from a man-made source. Still, the Wow! signal remains one of the strongest candidates for potential extraterrestrial contact ever detected.

3

The disappearance of an entire Inuit village

Image: Edward S. Curtis, Public domain, via Wikimedia Commons

How is it possible for an entire village to vanish without a trace? Believe it or not, this is said to have happened nearly a century ago. According to lore, a small Inuit village in Canada was well known among fur trappers who visited regularly to trade. But in 1930, something very strange supposedly occurred.

A hunter named Joe Labelle claimed he visited the village one day and couldn’t find a single person. Reports said there were guns and food left behind, and even claims that the graves in the cemetery were empty. A thorough investigation, however, found no conclusive evidence of what happened to the villagers. Some witnesses from nearby towns even reported seeing a huge green light. Theories ranged from mass migration to extraterrestrial abductions. The Royal Canadian Mounted Police has since dismissed the case as an urban legend. Some still believe the story to be true.

4

The Joyita Mystery

Image: bbb

We know thousands of shipwreck stories, but this one is quite unique. The MV Joyita, designed to be nearly unsinkable, was found adrift in the South Pacific, practically unharmed, but the crew had disappeared completely.

In October 1955, the American merchant vessel left the port of Apia in Samoa with 16 crew members and 9 passengers bound for the Tokelau Islands. After days without news, a rescue mission was launched. Five weeks later, the Joyita was spotted more than 600 miles west of its intended route. The vessel was partially submerged, and there was no sign of the passengers or crew. Four tons of cargo and all three life rafts were missing. They were never seen again.

5

A mummy and a mysterious fluid

Image: Gary Todd from Xinzheng, China, CC0, via Wikimedia Commons

Do you know where one of the best-preserved mummies was found? Hint: not in Egypt. Xin Zhui, the Marquise of Dai during the Western Han Dynasty in China, was discovered in her tomb at Mawangdui 2,000 years after her death, along with hundreds of valuable documents and artifacts.

What makes this mummy so extraordinary is how well-preserved her body is. Her organs and veins remain intact, and she still has hair and even eyelashes. Scientists analyzed the fluid present in the coffin and discovered it was acidic and contained salt and magnesium. They believe this mysterious liquid may have been responsible for preserving Xin Zhui so well. What they don’t know is whether it was intentionally poured into the coffin or came from the body itself.

6

A missing prime minister

Image: Yoichi Okamoto, Public domain, via Wikimedia Commons

The United States has its fair share of presidents who died while in office, but none of our 45 presidents have ever disappeared without a trace. Did you know that this actually happened in The Land Down Under?

Harold Edward Holt was the Prime Minister of Australia from 1966 until his presumed death in 1967. He loved the ocean and spearfishing. During a weekend trip with friends, Holt visited the remote Cheviot Beach to take a swim. Rough sea conditions that day caused him to be swept away by the waves, and he never reappeared. Despite an intensive search, his body was never found, which has given rise to numerous conspiracy theories. Ironically, Australians built the Harold Holt Memorial Swimming Centre in Melbourne in his honor.

7

The anonymous hijacker

Image: FBI, Public domain, via Wikimedia Commons

Many famous criminals have managed to remain unidentified for decades, but the D.B. Cooper case is something else entirely. In 1971, Cooper boarded a flight from Portland to Seattle. Shortly after takeoff, he showed a flight attendant a device he claimed was a bomb and demanded four parachutes and $200,000 in cash.

The crew landed to meet Cooper’s demands in exchange for the passengers and then took off again. As the plane flew over southwestern Washington, Cooper jumped into the cold, rainy night carrying his haul. His whereabouts and true identity were never discovered, although it is likely he didn’t survive the jump. In 1980, some of the ransom money was found near the Columbia River. Although the FBI officially closed the case in 2016, amateur sleuths continue to try to crack it.

8

Dancing to death

Image: Pieter Brueghel the Elder, Public domain, via Wikimedia Commons

Can you imagine an epidemic where the main symptom is uncontrollable dancing? Sounds like science fiction, doesn’t it? Yet this really happened during the Middle Ages. In 1518, a dancing plague struck Strasbourg, Alsace, in what is now France. This strange condition affected up to 400 people, making them dance frantically for weeks. It is said that some even died of heart attacks, exhaustion, or strokes.

Doctors and authorities tried all kinds of measures to stop the spread. They even banned music for a while! To this day, scientists are not certain what caused this bizarre condition: it may have been food poisoning from toxins in the ergot fungus, or perhaps a case of stress-induced mass hysteria.

9

A manuscript no one understands

Image: Public domain, via Wikimedia Commons

The Voynich manuscript is a codex written roughly 500 years ago in an unknown language and writing system by an anonymous author. Known as Voynichese, the manuscript was named after Wilfrid Voynich, a Polish bibliophile and antiquarian who purchased it in 1912.

Radiocarbon testing has shown that it dates to the early 15th century. Many cryptographers and codebreakers have attempted to decipher its roughly 240 pages without success. The manuscript contains diagrams and illustrations of unknown plants and astrological symbols. Some believe it may be a made-up language, a secret code, a work of fiction, or even a hoax. If you think you can solve this mystery, the Voynich manuscript is available for viewing at Yale University’s Beinecke Rare Book and Manuscript Library.

10

An ancestor of movable-type printing

Image: Bernhard

Similar to the Voynich manuscript, the Phaistos Disc is a fired clay disc believed to have been created during the Bronze Age. It was discovered by an Italian archaeologist in the basement of a palace in Crete, Greece, in 1908.

What makes this disc fascinating is that it contains a mysterious message. Stamped into the clay is a set of signs, forming a text that many scientists have tried to decipher—without success. It is considered an early attempt at printing, a technological innovation that would not become widespread for several centuries. While enthusiasts still hope the enigma can be solved, this is unlikely unless other documents are discovered to provide context.

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/ˈrɛɡ(jə)lər/