Buzz
Every single day, countless researchers worldwide dedicate their time to uncovering insights that expand our knowledge of the universe. Some breakthroughs result in life-saving medical treatments or explanations for mysterious occurrences, while others reveal quirky trivia that, though fascinating, may not have practical applications.
Yet, some studies are so peculiar that you might question the rationale behind funding them. Over recent years, science has gifted us with some truly odd findings, and here are 10 of the most unusual ones.
10. Cockroaches Use Karate Kicks to Escape Becoming Zombies
The idea that cockroaches can survive a nuclear disaster has largely been debunked. However, a Vanderbilt University researcher discovered that these resilient insects possess a unique ability to avoid becoming zombies.
The American cockroach faces a formidable foe in the emerald jewel wasp. These parasitic wasps can immobilize cockroaches with a single sting, quickly followed by a second sting to the brain.
The second sting injects a neurotoxin that hijacks the cockroach’s nervous system. This allows the wasp to control the cockroach’s movements, leading it to a nest where the wasp lays eggs inside the still-living host. The hatched larvae then feed on the cockroach.
Using a high-speed camera recording at 1,000 frames per second, researcher Ken Catania observed the interactions between the wasps and cockroaches. In roughly half of the encounters, the cockroaches escaped by delivering a swift kick to the wasp’s head.
This defensive behavior was more common in older cockroaches. When the wasp approached to deliver its paralyzing sting, the cockroaches stood upright and struck back with their spiky legs. While the kicks didn’t kill any wasps, they were effective in discouraging further attacks.
9. Sperm Cells Roll Rather Than Wiggle
In the 1670s, Antonie van Leeuwenhoek, using a single-lens microscope of his own design, did what any curious scientist would do—he examined his own semen. He described the sperm cells as moving like eels in water, a belief that persisted for over 340 years.
However, modern 3D microscopy techniques employed by researchers from the University of Bristol and Universidad Nacional Autonoma de Mexico have revealed a different truth. Contrary to the long-held assumption that sperm tails move side to side, they actually move in a single direction.
This unilateral tail movement would naturally cause the sperm to move sideways. To counteract this, the cells rotate in a corkscrew motion, enabling forward progression. This rolling action creates an optical illusion, making it appear as though the tails are moving rapidly from side to side under traditional microscopes.
This groundbreaking finding could have significant implications for future research in fertility and reproductive health.
8. Human Teeth Originated From Aquatic Ancestors
The evolution of human teeth might not immediately bring ocean-dwelling creatures to mind. However, researchers from the European Synchrotron Radiation Facility and Uppsala University have uncovered evidence suggesting that our dental origins lie beneath the waves.
Fossils of jawed fish, discovered over a century ago, had never been thoroughly examined until now. These ancient remains belong to acanthothoracids, a species believed to have existed more than 400 million years ago.
The bones of these fish are encased in dense rock, making traditional study methods risky due to potential damage. To overcome this, the research team utilized the world’s most powerful X-ray source, allowing them to examine the internal structures of the fossils without harming them.
Similar to humans, the teeth of these prehistoric fish were embedded in the jawbones. This contrasts with sharks, whose teeth are connected to their skin. The jaw structures of acanthothoracids share enough similarities with modern human jaws to suggest a direct evolutionary link to our own.
7. Microbes Can Remain Dormant for Over 100 Million Years
In the South Pacific Gyre, east of Australia, scientists from the Japan Agency for Marine-Earth Science and Technology discovered microbes in ocean floor sediment that had been dormant for more than 100 million years, surviving with minimal food and oxygen. In 2010, researchers decided to revive these microorganisms by providing nutrients.
Despite enduring millions of years in a nutrient-scarce environment, the microbes quickly revived with proper care. Their population grew by more than four orders of magnitude within months. As detailed in their 2020 study, researchers remain puzzled about how these microbes survived for so long and what they were doing during their extended dormancy.
Most of these microbes did not produce spores, which are typically used by bacteria to survive in extreme conditions. This suggests they might have been dividing at an extremely slow rate, though the lack of nutrients makes this scenario improbable.
Alternatively, they could have been growing at an exceptionally slow pace. If true, this would mean they are over 100 million years old, granting them an unimaginably long lifespan. Further research is needed to uncover the precise mechanisms behind their survival.
6. Sheep Have the Ability to Recognize Human Faces
Contrary to the belief that sheep mindlessly follow humans, researchers from the University of Cambridge have demonstrated that sheep can distinguish between people, much like animals considered more intelligent, such as apes.
When shown images of different humans, sheep can reliably identify the face associated with a food reward during training. They can even recognize the face when presented from a different angle. Additionally, they can pick out the face of their handler.
The experiment featured images of notable figures such as Barack Obama, Emma Watson, Fiona Bruce, and Jake Gyllenhaal.
These findings could have significant implications for researching brain disorders like Huntington’s disease, which often impairs facial recognition. By studying how sheep process faces, scientists may develop treatments to help humans with similar cognitive challenges.
5. Tongues Possess the Ability to Detect Smells
While it’s common knowledge that taste and smell are linked, as evidenced by the diminished flavor when your nose is blocked, the tongue’s capabilities might extend further. Researchers at the Monell Chemical Senses Center discovered that lab-grown human taste cells contain odor receptors similar to those in nasal cells.
When these taste cells were exposed to scents, they responded in the same way nasal cells do when detecting odors. This suggests a deeper connection between taste and smell, with potential interactions occurring before sensory signals even reach the brain.
Interestingly, the same odor receptors have also been identified in sperm cells and intestinal cells. Initially, it was thought that sperm cells used these receptors to navigate toward an egg within the female reproductive system. However, subsequent research has debunked this theory.
4. The Tendency to Have More Sons or Daughters Can Be Inherited
In basic genetics, it’s often taught that the probability of having a boy or a girl is 50-50. Since females carry two X chromosomes, the father’s contribution determines the baby’s sex—an X chromosome results in a girl, while a Y chromosome results in a boy.
While this principle holds true, the 50 percent probability may not always apply. Researchers at Newcastle University analyzed nearly 1,000 family trees dating back to the 1600s and discovered that men with many brothers are more likely to father sons, while those with many sisters are more likely to have daughters.
This suggests a genetic factor influencing the ratio of X and Y chromosome-carrying sperm in men, which can be passed down from parents. Although the specific gene responsible remains unidentified, it could explain certain familial patterns.
For instance, following World War I, many countries, including the UK, experienced a surge in male births. Men with multiple sons had a higher likelihood of having at least one son survive the war compared to those with only one. These surviving sons may have inherited their fathers’ genetic predisposition for having more sons, potentially contributing to the post-war increase in male births.
Further research is necessary to identify the specific gene responsible. If confirmed, this could clarify why certain families tend to have more children of a particular gender.
3. Ethics Books Are the Most Frequently Stolen
A University of California researcher aimed to investigate whether ethicists exhibit better moral behavior. Specifically, he examined whether ethicists were less likely to steal books.
Philosopher Eric Schwitzgebel analyzed the availability of ethics books versus other subjects in various libraries. Ironically, he discovered that ethics books were more frequently stolen than others, with older and more renowned ethics texts being twice as likely to go missing.
While it’s unclear whether factors like book popularity influence the data, Schwitzgebel is firm in his conclusion. Individuals borrowing ethics books are expected to demonstrate greater conscientiousness and moral awareness. However, they appear to be the least concerned about returning borrowed property.
He posits that some individuals might use their understanding of ethics to justify not returning books. This suggests that possessing moral knowledge doesn’t inherently lead to more ethical behavior.
2. Dry Spaghetti Shatters into Multiple Pieces When Bent
If you’ve ever attempted to break a single strand of dry spaghetti, you might have noticed it splits into at least three pieces. By holding both ends and snapping it, a small middle fragment often forms. Intrigued by this phenomenon, a group of French researchers decided to investigate the reason behind it.
Their research earned them the Ig Nobel Prize. They discovered that when dry spaghetti is bent, it initially snaps at the most curved point near the center. The resulting force creates waves along the strand, causing it to break into additional pieces.
Dissatisfied with the notion that dry spaghetti can never be cleanly snapped in two, MIT scientists built upon the French team’s findings. They discovered that twisting a dry spaghetti strand nearly 360 degrees before bending it slowly allows it to break into just two pieces.
This breakthrough could benefit researchers studying rod-shaped structures. For the average person, it might simply make cooking pasta a bit tidier. And yes, 'spaghetto' is indeed a recognized term in certain dictionaries. (We checked.)
1. Knives Crafted From Feces Are Ineffective for Cutting
A popular tale recounts an Inuit man stranded in the Arctic who fashioned a knife from his frozen feces, using it to kill and skin a dog and free himself from ice and snow. While many dismiss this as folklore, researchers at Kent State University decided to investigate its plausibility.
To simulate the Inuit man’s alleged circumstances, a researcher adhered to a high-protein Arctic diet for slightly over a week. Fecal samples were collected periodically and fashioned into knives, either manually or using molds.
These makeshift tools were frozen with dry ice to achieve maximum coldness. They were then tested on animal hides and tendons. As anticipated, the knives melted upon contact, leaving smears of fecal residue on the intact hides.
For thoroughness, the experiment was repeated using fecal samples from a researcher on a standard Western diet. Unsurprisingly, the outcome was equally ineffective.
