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Biologists have recently identified a new species of harvestman (daddy longlegs spider) near the town of Monjolos in Minas Gerais, southern Brazil, and gave the precious new discovery an accurate but tongue in cheek name: Iandumoema smeagol
The cordon-bleus are unique animals that both sing and tap-dance to attract mates.
A study of 986 Bolivian women found that on average, a lifetime infection with a type of roundworm named Ascarius lumbricoides led to an extra two children in the family. Their paper, published in the journal Science, suggests that the worm is altering the host's immune system, making it easier to become pregnant -- in effect, the parasite increases female fertility. The researchers hope this discovery will lead to "novel fertility enhancing drugs."
This may be the first known case of simplification from a macro to a microorganism, a cheap trick which evolution likely used more than once though.
The bat is the only flying mammal and among the heaviest in the world. To top it over, it can land upside down a perplexing acrobatic feat which has left scientists scratching their heads for many years. After carefully and systematically studying bat upside landings in slow motion, a group of researchers thinks it has cracked the puzzle: bats employ a nifty trick where one wing stays flapping while the other is moved close to the body. This asymmetry corrects the moment of inertia and center of mass so the bats always land safely upside down.
Not many people know it, but just like you have a hand dominance, you also have an eye dominance. Here's how you can figure it out.
A recent study from Iowa State University shows how a gene, found in a single plant species so far, can increase protein content when grafted into the DNA of staple crops. Their findings could help improve a huge variety of crops and improve nutrition in developing parts of the world, where available sources of protein are sometimes limited.
Self-preservation and reproduction are the most powerful instincts, and life forms on Earth have devised all sorts of gimmicks and tactics to become successful (pass on those genes). Just look at the male ruff sneak tactics to grab girls. There are three distinct approaches: the cocky aggressive, the sneaky 'satellite, and the cross-dresser. You might think this isn't necessarily peculiar in itself. After all, human males employ similar approaches to seek women's attention. The peacock, the friend-zone dude, the jock, the joker etc. What's odd about ruff males is that this behavior is coded inside their genes - from the way they act, to how their plumage looks like. And they're all, ultimately, males of the same species.
In recent years, we’re finding out more and more that our guts are actually an impressive ecosystem, influencing not only how we digest our food, but also how we think and behave. But now, researchers have taken it even one step further: we may need to define a whole new life form to describe these […]
Some 360 million years ago, the oceans were teeming with big fish, some as big as a school bus. Then something terrible happened, the causes of which still escape scientists today: the Hangenberg Event. This was the last peak in a streak of mass extinctions known as the Late Devonian extinction which exterminated 97% of all marine vertebrate species. In the aftermath, it paid to be small a new study suggests. The researchers at University of Pennsylvania found that small fish dominated the ecological niches for nearly 40 million years. This tremendous rebound time is relevant today when overfishing is threatening countless large fish species. Once these disappear, it might be a very long time before we get tuna-sized fish back on our plates.
Ant colonies are incredibly complex systems -- the tightly knit, intensely cooperative colonies are closer to a single superorganism than to human societies. Researchers form the University of Bristol wanted to know how this single mind of the hive reacted to distress, and subjected colonies of migrating rock ants to differing forms of simulated predator attack to record their response.
Scientists at the Georgia State University, Georgia Regents University and Charlie Norwood VA Medical Center found that the brain uses sweet foods to form the memory of a meal. The paper shows how the neurons in the dorsal hippocampus -- a part of the brain that is critical for episodic memory -- are activated by consuming sweets.
Charles Darwin’s monumental formulation of the theory of evolution has been overwhelmingly voted as the most influential and important academic book, ahead of works by Newton, Plato and Einstein. “Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the production of the higher animals, […]
Bees play a critical role in maintaining natural plant communities and ensuring production of seeds in most flowering plants. But humans too have a close relationship with bees, which spans over a history close to 9,000 years, a study found which analyzed ancient pottery. That's a lot earlier than previous recounted evidence. Right now, however, honeybees are dying at an astonishing rate. The fact that bees have been feeding and nurturing humans for so long should only make us more humble, but also more steadfast in finding a solution.
It was a finding that sent ripples throughout the entire paleontology community. Met with heavy criticism, the authors are now vindicated.
Women suffering from polycystic ovary syndrome (PCOS) show elevated levels of testosterone and testosterone derivatives in their systems, as well as an increased risk of anxiety and depression. As the offspring of these women (both sons and daughters) show similar symptoms, it's been believed that PCOS can be transmitted through genetic code. However, a new idea comes to question this -- specifically, the fact that the fetuses of mothers with PCOS are gestating in high levels of testosterone is what causes these symptoms.
Exclusively found in the north-eastern parts of Madagascar, these peculiarly looking primates may both be the strangest and adorable looking things you'll see all day.
Give it up for your city's sewer system - aside from handling our waste (well, at least most of the time), it also fights disease.
According to NOAA's Coral Reef Ecosystem Division about 30 percent of the world's coral population has perished due to average ocean temperatures, El Nino's effects and acidification. Even if we halt all man-made CO2 emissions now (virtually impossible), the cascading effects of ocean acidification can not be halted once they've been set in motion. As a result, coral all over the world will bleach more frequently and intensely. Desperate times indeed, but a group of scientists are trying their best. They identified strong coral specimens and are currently stressing them further so they become more resiliant to changing conditions driven by global warming. In time, these super coral might be transferred all over the globe in an attempt to halt the rapidly deteriorating coral reef.
Researchers have found new fauna in northern Brazil, in what used to be the continent of Gondwana.
Archaeologists have discovered fossils of rats 10 times bigger than modern rats. Working with the Australian National University (ANU), the team made the findings in East Timor, a former Portuguese colony in south-east Asia. Dr Julien Louys of the ANU School of Culture, History and Language said these are the largest rat fossils ever to be found, and by […]
In a study published Monday in the journal Scientific Reports, researchers from the University of Queensland caution that the surge in scarlet fever cases may pose an unexpected threat.
A new study from the University of California looks at the link between the bonding hormone oxytocin and the effect of marijuana in social contexts that improve interpersonal bonding. Their findings offer insight into how the hormone could make social interactions more fulfilling and satisfying by enhancing our natural cannabinoid receptors.
A study published by British researchers caused a storm among biologists; the question on everyone's lips - do chimps have accents?
The tiny mollusk measures only 0.033 inches (0.86 mm) on average.
Like all living beings, plants also have natural defense mechanisms in the form of spikes, stings and thorns to protect themselves from animals. Some of the plants are as dangerous as snakes or spiders are, this is to deter animals from touching them. In fact, many deadly poisonous plants grow in our own yards or neighborhoods, […]
A new finding is sending waves throughout the marine biology community: Omura's whale, a whale so rare that researchers weren't even sure if it exists anymore
The concepts of biodiversity and evolution are generally thought of as something that occurs in thousands, maybe millions of years - but every once in a while, scientists catch a species red handed: evolving, becoming a new species.
Ahh, the phallus. In most sexually-reproductive species, half of the individuals lack one, while the other half is constantly trying to share theirs as much as possible with the first group, with varying degrees of success -- bragging, fighting or impressing their way to the continuation of the species. Marvelous!
When humans and nature work together, you can build some extraordinary designs. At MIT, living things are integrated using today's most advanced gear - like biological 3D printers - to help solve human needs. In this particular case, a suit that self-regulates in response to humidity (the trigger is sweat) so you can work, dance or explore more comfortably.
Manure has been used as a plant and crop fertilizer since the dawn of agriculture, but since poop is naturally occurring it's been essential to the ecosystem far before humans evolved on this planet. But as the planet's megafauna has steadily dwindled, so has the megapoop significantly impacting the nutrient-recycling system. According to Joe Roman, a biologist at the University of Vermont, in some cases nutrient transport via pooping today is only 5% of what it used to be during the Ice Age.
There's no getting rid of our microscopic friends - where there are people there are bacteria, even in outer space.
Paleontologists have unearthed two spectacular cave lion cubs, preserved by the permafrost in the Sakha Republic, also known as Yakutia. The last glacial period, popularly known as the Ice Age, was the most recent glacial period within the Quaternary glaciation occurring from 100,000 to 12,000 years ago. At the end of this ice age, several species couldn’t […]
A preliminary study from Switzerland, published this month in the Annals of Neurology, proved the effectiveness of a new method of non-invasive brain surgery: using a newly-developed operating device that relies on ultrasound, in conjunction with magnetic resonance imaging (MRI), allowed neurosurgeons to precisely remove small pieces of brain tissue in nine patients suffering from chronic pain without removing skin or skull bone. Researchers now plan to test it on patients with other disorders, such as Parkinson's. Neal Kassell, neurosurgeon at the University of Virginia, not directly involved in the study.
Cristiano Menezes of the Brazilian Agricultural Research Corporation has discovered farming behaviors in bees, adding them to the list of social insects that practice agriculture.
What exactly makes you thirsty? Dehydration, obviously, but how does your brain know that your body needs water? And how does that grey, squishy lump resting in your cool and comfortable cranium, know when your body needs to heat up or cool off? Scientists at the McGill University Health Centre Research Institute (RI-MUHC) and Duke University have asked themselves just that, and being scientists, went ahead to find out.
A research effort at Winship Cancer Institute recently identified a substance in orange lichen and rhubarb that has the potential to be used as a new anti-cancer drug. The substance, an orange pigment known as parietin or physcion, slows the growth and can even kill leukemia cells harvested from patients, without obvious toxic effects on human cells, the study authors report.
Researchers have discovered a new species of banana christened "nanensis", belonging to the Musa genus, sharing a place in the family Musaceae with more than 70 other species of bananas and plantains. It's scientific name honors the province of Nan where the type specimens were collected.
Chinese researchers discovered a chemical compound that works just as well as morphine -- without any of the negative side effects. The substance is derived from the venom of a centipede native to China. The discovery has huge medical applications, and could potentially reduce the country's military reliance on morphine for battlefield use.
"Spring is coming," said no Stark ever. You've already noticed that the traditional starting dates for each season have become misaligned, and in some instances patterns have changed with shorter winters and longer springs. This trend is set only to exacerbate in the future. By 2100, spring could come three weeks early on average across continental United States. In some parts, like the Pacific Northwest and the mountainous regions of the Western U.S., spring will be a month early. This might sound like good news if you live in Wisconsin, but in the long-run this spells disaster as ecosystems get disrupted by abrupt seasonal changes.
Bad news for us -- and fish.
Researchers stumbled upon a new tool to fight cancer in a rather unexpected place; while searching for a vaccine against malaria in pregnant women, a team of Danish scientists found that, simply put, armed malaria proteins are remarkably good at killing cancer cells. They hope to have a working prototype ready for human trials within four years' time. Their discovery has been published in the scientific journal Cancer Cell.
For the past two weeks the scientific community was stirred by news that a biologist captured a male moustached kingfisher, took the first ever picture of a male from the species, then killed the bird shortly after.
Tourism is affecting wildlife in more than one way.
Are homosexuals hard wired this way or merely the product of their environment? Some argue that its both, but whether or not there's a 'gay gene' or more is up to debate. The fact that it's such a delicate subject, i.e. hard to get funding, means that progress is slow. One could argue that it wouldn't be worth researching anyway. If someone found a scientific causal-link, say some genes, that's responsible for homosexuality than it's possible to maybe reverse it. A 'cure' for homosexuality, if you will. Even this very prospect is enough to kill research out of politically correctness. At the American Society of Human Genetics (ASHG) in Baltimore, however, the audience might have been surprised to hear about the findings of a group from University of California (UC), Los Angeles that found there's reasons to believe homosexuality is rooted in epigenetics. The authors are quick to caution that their findings are far from being the final word, and hence should be taken with a grain of salt.
Among all the species with which we share the animal kingdom, pigs are the ones whose organs are best suited for transplant in human bodies -- they are approximately the same size as our organs and have similar structures, making reconnecting blood vessels much easier. Pigs tend to have large litters and reproduce quickly, making them a very large, very accessible source of "spare parts."
A walking fish, a jewel snake and a sneezing monkey: these are just some of the biological treasures recently discovered in the fragile Himalayan ecosystems.
While surveying the island of Sulawesi right in the center of Indonesia, a group of researchers came across a previously undocumented species of rodent. It was pretty easy too, considering the animal's uncanny appearance: what would otherwise look like a normal looking rat, but with the nostrils of a hog.
Over a period of 50 days of monitoring, researchers found 2,625 different plant species for sale on eBay. 510 were known to be invasive in at least one region somewhere in the world and out of that group, 35 are on the International Union for Conservation of Nature’s list of the 100 worst invasive species. With […]
When it comes to human waste products and pollutants, plastic claims the crown. There are very few things our planet can throw at it to get rid of the polymer. It becomes bendy and rippy and shredy but it just won't go away. When you compound the resilience of this headstrong material with the sheer quantities of it that we dump into the oceans, it looks like a pretty one-sided battle that nature can't win, despite all our desperate efforts to increase recycling and take it out of landfills. But now it seems that mother nature still had a trick up her sleeve, and the non-biodegradable reign of plastic is about to come to an end, undermined by the heroic appetite of the mealworm.
