Born from nature

Don’t back the wrong horse: The origins of common idioms explained

Credit: Florian van Duyn

Nature gives us so much, even some words and phrases we use to express ourselves. Many sayings and idioms we use every day are inspired by landscapes, plants, animals, oceans, and more. But what do they really mean, and where did they come from? Discover all this and more in our article on 10 nature-related idioms!

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He was between the devil and the deep blue sea: either tell the truth and risk the consequences, or lie and face guilt.

Sometimes life puts you in tough situations where no choice seems easy, satisfying, or pleasant. Choosing between two chores you don’t want to do, or two dishes you don’t want to eat, is like being "between the devil and the deep blue sea." The phrase comes from the world of sailors: the ‘devil’ was a rope on the ship’s deck that was hard to reach, leaving sailors caught between it and the dangerous, stormy sea.

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She had a whale of a time at her birthday party with all her friends.

We may not all be whale experts, but one thing is clear: they are huge creatures. That’s likely why the word "whale" was used as slang for something enormous back in the 19th century. Over time, the meaning evolved to describe something grand or extraordinary, giving rise to the idiom "a whale of a time," used to refer to incredibly fun, enjoyable, or memorable moments and experiences.

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I think you’ve backed the wrong horse by supporting that candidate in the election.

"Backing the wrong horse" can be frustrating and discouraging. Originating in the world of horse racing, this idiom is used when you support something that doesn’t work out or trust someone or something that ends up letting you down. Whether it’s a personal choice, financial decision, or political issue, the phrase can be applied to all sorts of situations in life.

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When he forgot our anniversary after months of neglect, that was the last straw.

Some days just don’t go right: your alarm doesn’t go off, you step in some water with your socks on, and you miss your morning coffee. At the office, it turns out the coffee machine is broken, so you grab a cup at a café. And just when you think the bad luck is over, someone bumps into you and spills the warm infusion on your clothes. No wonder you lose your temper; this was "the last straw." The phrase comes from an old proverb: "Is it the last straw that breaks the camel’s back," meaning a small event can push a situation over the edge.

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After their argument, she offered an olive branch by inviting him to lunch.

Have you ever sent or received flowers after an argument? Classic, right? Offering or extending "an olive branch" is a gesture of peace, a request for a truce, or a show of goodwill. As you might guess, this idiom dates back to ancient times, when olive branches symbolized peace, harmony, and even victory.

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Stop beating around the bush and tell me what really happened at the meeting.

If you ask your family whether they ate the dessert you left in the fridge, and they start avoiding the question or changing the topic, you can say they’re "beating around the bush." The idiom comes from medieval English hunting, where hunters would beat bushes to flush out birds or small animals, rather than going straight for them. Today, it’s used to describe someone who avoids the main point and speaks indirectly.

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If you think I’m the one who broke the plate, you’re barking up the wrong tree.

What if, after getting upset with your family, you find out it was the dog who ate your dessert? In that case, you could say you were "barking up the wrong tree." This common idiom is used when you blame the wrong person or make a wrong assumption. Like the previous one, it comes from hunting: in 19th-century America, raccoon hunters used dogs to track their prey, but sometimes the dogs would simply bark at the wrong tree.

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The weekend started off peacefully, but it was just the calm before the storm of holiday traffic.

Ask a meteorologist what usually comes before a storm, and the answer is simple: calm. Everything seems quiet and peaceful, but trouble is on the way. This pattern in nature inspired the widely used idiom "calm before the storm," which warns that periods of tranquility can be followed by sudden chaos.

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Their argument about who would do the dishes was really just a storm in a teacup.

Do you remember the last time you got really upset over something that wasn’t all that important? Chances are you were making "a storm in a teacup." You don’t have to be English to know that teacups are usually small, so how could a storm possibly break out inside one? It’s this very irony that gives the idiom its meaning.

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With your talent and dedication, the world is your oyster.

When opportunities are endless, when the best is yet to come, or when you have the power to achieve your goals, you can say that "the world is your oyster." This widely used idiom comes from Shakespeare’s The Merry Wives of Windsor (1602), where the line reads, "Why then the world’s mine oyster, which I with sword will open." The oyster represents the world, and the pearl inside symbolizes the opportunities to discover.

The nose knows best

Dogs can smell diseases—here’s what else you didn’t know about scent

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Smell is one of our most underrated senses, yet it shapes memories, triggers emotions, and even affects behavior. While taste and vision often take center stage, scent works behind the scenes, influencing everything from who we’re attracted to, to what we remember most vividly. Here are 10 real, brainy, and sometimes bizarre facts about smell that reveal just how powerful your nose really is.

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A 2014 study published in Science shattered the old myth that humans can only detect 10,000 odors. Using complex mixtures of odor molecules, researchers showed people can distinguish over 1 trillion unique scents.

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The olfactory bulb is directly connected to the amygdala and hippocampus—areas tied to memory and emotion. That’s why scents can instantly bring back vivid memories or feelings.

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Dogs have up to 300 million olfactory receptors, compared to a human’s 5 to 6 million. Their olfactory bulb is also 40 times larger relative to brain size. This allows dogs to detect some odors in parts per trillion—like explosives, drugs, or even diseases such as cancer and diabetes.

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Humans can detect the direction of a scent using stereo olfaction—each nostril processes slightly different odor concentrations, helping you locate sources. It’s not as precise as in animals, but studies show people can track scents across open ground, especially with practice or training.

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Babies can recognize their mother’s scent within days of birth. Breastfed infants prefer the smell of their mother’s milk over others. This olfactory recognition helps form early attachment and may guide newborns to the breast for feeding in the first hours of life.

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While human pheromones remain a controversial topic, studies show we can subconsciously respond to scent cues linked to immune system genes (known as MHC). People often prefer the natural scent of partners with different MHC profiles—potentially increasing offspring health through greater genetic diversity.

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Retail stores often use "scent marketing" to influence customer behavior—like pumping out baked cookie smells to make shoppers linger. Studies show pleasant scents can increase time spent in stores, improve mood, and even boost how much people are willing to spend.

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Synesthesia is a rare condition where stimulation of one sense involuntarily triggers another. Some synesthetes smell scents and see colors or shapes. The cause is likely cross-wiring in the brain.

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Studies show that the scent of peppermint can increase alertness, memory, and physical performance. It’s often used by athletes and students for focus. The menthol in peppermint stimulates the trigeminal nerve, giving a cooling sensation that makes the brain feel more awake and refreshed.

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Human sweat is odorless. The smell comes from bacteria on your skin breaking down sweat molecules into smelly compounds. Different bacteria produce different odors—some people’s sweat smells like vinegar, others like onions or even cat pee, depending on their microbiome.