gear Push settings
A disease called black band coral disease is affecting nearly half of the reef sites researchers have surveyed in waters off Kauai and threatens to destroy Hawaii's reefs, according to the state Department of Land and Natural Resources.
Endemic to Australia and New Zealand, the satin bowerbird is considered one of the most intelligent birds found in nature. Mature males are very easy to spot because of their bright blue eyes, while their bodies are uniformly covered in black, although sometimes light diffraction makes the bird's feathers turn almost into a metallic sheen. What sets these birds apart is their remarkable courtship ritual, and the male's seemingly obsessive fixation for blue.
We all need to consider our future without pollinators, or if there even will be a future without them.
Despite lacking a rigid skeleton, octopuses have a remarkable coordinated locomotion. Using high-speed cameras, a group at the Hebrew University of Jerusalem found the octopus achieves this by precisely and independently moving one or more of its eight legs to crawl its body, even when its facing a different direction. Moreover, there is no discernible rhythm or pattern to this undulating leg movement, making the octopus unique in this respect. It's controlled chaos, and only the octopus itself completely knows how it pulls all this off.
Blind rats learned to navigate mazes just as well as those that could see, after scientists strapped a simple geomagnetic compass - the kind that's found in your smartphone - fitted with electrodes directly onto their brains. Though they're not naturally equipped to sense magnetic fields, the rats' brains demonstrated tremendous plasticity and effectively incorporated a new sense! We can only presume this is possible in the case of humans as well, so the team from Japan which made the study believes blind people could incorporate a similar device - minus the brain hack. There are other alternatives after all, like say an iPhone app that acoustically alerts the blind person which way to turn or a sensor directly fitted into a walking cane.
If you ever dropped food on the pavement, don't feel too bad. It'll get scrapped bit by bit by the ever resourceful ants, so you're actually doing a favor to these swarms of critters. But have you ever wondered why ants can eat ice cream, hot dogs or just about every kind of junk food we unwittingly throw at them? Some researchers looked at this question and found that some particular ant species have seemingly adapted to consume junk food.
More than half a century in question, scientists now confirm that the tiny blackpoll warbler flies nonstop over the North Atlantic Ocean each autumn from New England to South America. The trip takes three days, during which the bird foregoes any rest, sleep or meal. It also absorbs its own intestines.
For the first time, researchers have discovered a vertebrate able to change the texture of its skin from smooth to spiny. The new frog species was found in Ecuador in the plentiful moss surrounding the native forest.
There's good news, and bad news. The good news is that an extremely rare bunny has been observed for the first time in 20 years, but the bad news is that their numbers seem to have dwindled more than ever, and we may never see them again.
A park ranger in south China was surprised to find a giant salamander while he was out picking winkles. The giant amphibian measures 83 cm in length (2.5 feet) and weighs 5.5 kg (12 pounds). This amazing creature has remained relatively unchanged since the Jurassic and is widely regarded as a living fossil, but at the […]
Cloning the woolly mammoth is a life long dream for many geneticists and biologists, but the challenges are numerous. Now, we've come a step closer after researchers replaced snips of elephant DNA with those from the woolly mammoth. The changes they've made so far are stable, and even though there's still much work ahead, little by little scientists are building the mammoth's genome one piece at a time. Next stop: actually cloning the mammoth, effectively resurrecting the species back from the dead.
In 2005 Chris ‘Brolga’ Barns set up a baby kangaroo rescue centre in central Australia’s Alice Springs. The main goal was to help orphaned baby kangaroos, whose parents had been struck by vehicles in Australia. Often Chris would find the orphans at the side of the road still in their mother’s pouch – even if she […]
Half cockroach, half machine, these peculiar insects were hijacked by researchers at Texas A&M University for science. Electrodes implanted in their tiny brains send electrical signals that stir the roaches left, right or makes them halt. Effectively, the researchers are controlling their bodies. This may sound despicable - it actually is in many ways - but the benefits to humanity are far reaching. The cyborgs would be our eyes and ears in places otherwise inaccessible, like disasters sites in the wake of earthquakes or other environmental calamities. Picking the cockroach brain might also help us learn more about how our own brain works. This in turn could spur the development of brain-computer interfaces or a new generation of prostheses that faithfully mimic real limbs.
While he was only 22 years of age, Charles Darwin sailed on the ship H.M.S. Beagle to the Galapagos Island on a trip that would later inspire him to write the theory of evolution. Paramount to his evolutionary theories was his study of finches. He identified 13 different species differentiated by beak size, and correctly concluded that the different beaks were adaptations to different diets available among the islands. This was a powerful example of divergent evolution - varieties which diverge from some original species. For instance, domestic dogs from wolves. One powerful driver of divergent evolution is physical isolation. Each left to its own island, Darwin's finches evolved specialized traits. On California's Santa Cruz Island, however, a most peculiar finding was made. Katie Langin, a biologist at Colorado State University, discovered two varieties belonging to the same species (Aphelocoma californica or the Scrub Jay) which diverged despite the absence of a physical barrier. Isolation drives speciation, but not in this case. Granted, the two Scrub Jay populations are essentially the same species. And yet, this is still definitely very, very weird. And we're only beginning to understand what's happening.
Octopus species that live in ice-cold Antarctic waters employ an unique strategy to transport oxygen to its tissue and survive, according to German researchers. The study suggests the octopuses' specialized pigments, analogous to hemoglobin in vertebrates, are in higher concentration in the Antarctic region than in warmer waters. This would help to explain why octopuses are more adapted to climate change and warming waters
The chameleon is one of the most remarkable, but also iconic creatures in the animal kingdom. It's color shifting traits has made it the subject of metaphors. A person who is a master of disguise is rightfully labeled a chameleon. But how does the elusive lizard work its magic? After years of observation and rigorous study, scientists have finally uncovered how they do it. Beneath the outer layer of skin, chameleons have special nanocrystals that are evenly spaced. These reflect light and changing the spacing between the crystals also changes what kind of light gets reflected and eventually hits our eyes. Ultimately, this is how the chameleon turns green from red only a few minutes ago, or vice versa.
People generally love their pets, but we'd be lying to say there isn't an inter-species discrimination. How many fish owners do you know who've been with their goldfish to a veterinarian? Not that many, I presume. Certainly, number-wise it pales in comparison to dogs or cats. The story of a Scottish goldfish named Star which had its cancerous eye removed by doctors thus serves as a noble example of respect and responsibility that all pet owners should bear.
The Catalina Fox simply can't catch a break - it went from endangered, to doing so well that local residents want to kill it again.
This eagle at Codorus State Park in Pennsylvania has had it up to his neck with snow – both parents, mother and father, have taken parenting to the next level, sharing egg duty despite the growing snow. The Bald Eagle, recently taken off the endangered list, is a sea eagle. It’s an opportunistic species that subsists […]
Praying mantises are peculiar creatures, by human standards. The insect often stands in a pose that looks like it is praying, but make no mistake - it's a formidable killer and an unforgiving lover. The unholy mantis uses its spiky front legs with great accuracy to ledge unto prey, but also to hold onto its male lover after mating to chop of his head. Ouch! A less known aspect of praying mantises is their agility. The insects make extremely calculated leaps and controlled landings, all in the blink of an aye. Now, a team from University of Cambridge and University of Bristol, UK, have found out how they manage their acrobatic feats. In short, it's a complex interplay between the counter-rotation of three body parts to exchange momentum. This orients the insect towards its target with great precision.
It’s not every day that species get such awesome names – but then again, it’s not every day that such awesome spiders are discovered. Two gorgeous new species of spider have been discovered in Australia (where else?), and the researchers who made the discovery decided to give them these memorable names. The species are a part […]
Big cities are crammed with millions of pigeons, but despite their large numbers the birds seem to have no problem navigating through bustling urban environments. I've often wondered how pigeons manage not to hit each other, first of all, when they sudden burst in a flock or why you never seem to see pigeons hit by taxis or poles. A new study suggests that this remarkable dodging is made by the pigeon through a trade-off between efficiency and safety, depending on the situation.
They like freezing conditions, but the Emperor penguins struggled during the last Ice Age, a new study concluded. In fact, if they hadn't been able to change their breeding habits and even their genetic make-up, they might have not survived.
We all know how therapeutic and soothing (or on the contrary, motivating) music can be; and we all know that different people like different types of music... so it seems safe to say that different animals also like different types of music. Now, a joint team of scientists and musicians believe they found how to compose the purr-fect music for animals, including monkeys and cats.
This gentle and secluded creature is called a pangolin. Bet you've never heard of him. It looks sort of like a walking pinecone, a dragon or a dinosaur. It's tongue is as long as its body and can curl, then roll in a scaly ball. It's a pretty amazing animal and it's a shame so few people know of its existence. But more worrisome is that the pangolin might cease to existence entirely, with or without we knowing about it. Many believe it's the most trafficked animal in the world.
Memories aren't infallible - even for those with photographic memory - so, more often than not, they'll seem fuzzy. And the older these get, the fuzzier they're recalled. Mixing names, faces and events in your head can sometimes be embarrassing, but at least we're not alone. Seems like bees have false memories too, according to a study made by British researchers at Queen Mary University of London. Previously, false memories had been induced in other animals, like mice, but this is the first time natural false memories have been shown to happen. Research like this might help us, in time, understand how false memories are formed and, in a more general sense, how we recall events.
Paleontologists have excavated and analyzed the remains of an ancient hypo ancestor in Kenya. The 28 million-year-old fossils paint a broader picture revealing the missing link between modern day hippos and the earliest ancestor who lived some 53 million years ago. As an interesting tidbit, the closest living relatives of the hippo are whales and […]
Rats remember acts of kindness done by other rats, and are more helpful to individuals who previously helped them. It's not clear if they do this because they are grateful or if they are trying to make sure that they will get helped in the future as well, but their behavior gives scientists a new understanding of animal social behavior.
Mollusks such as oysters, clams and scallops are highly vulnerable to the increasing acidification of the world's oceans. A new study concluded that the acidification is so intense that the mollusks aren't able to properly produce a hard shell, putting them in peril.
Marine animals today are 150 times larger than they were 540 million years ago, according to a new study which seems to suggest evolution favors animals bigger in size.
Until now, only two species of seadragon had been reported, with the last one being discovered 150 years ago! Now, biologists have discovered a new species off the coast of Australia: a red hot sea dragon. “All this time we thought that there were only two species,” marine biologist Nerida Wilson of the Western Australia […]
The Mercury level in tuna has been a subject of debate for decades now. Paul Drevnick, Assistant Research Scientist at University of Michigan and his team analyzed data from over the past 50 years and found that mercury levels in Pacific yellowfin tuna, often marketed as ahi tuna, is increasing at 3.8% per year. If 3.8% per year doesn't seem like much, that translates into a doubling at every 20 years. So in 50 years, mercury levels have increased 6 times.
We know that things like eye or skin colour are encoded in our DNA and passed down by our parents, but many other traits are significantly influenced by another hereditary mechanism: bacterial offspring. A paper in Nature suggests microbes are passed down from mother mice to pups, passing down traits similarly to how genes influence illness and health.
Bald Eagles are bouncing back from the brink of extinction, research shows. The official US mascot is now thriving and populations are continuously growing, but challenges are not yet over.
A new study has revealed the fun-loving side of crocodiles; the reptiles, generally regarded as ferocious and aggressive, are reported to surf waves, play ball and engage in piggyback rides to have fun.
Science confirms what every dog owner has known in his heart: our canine friends can tell when we're happy or upset. The discovery represents the first solid evidence that an animal other than humans can discriminate between emotional expressions on other species.
The above footage highlights just how amazing octopus camouflage can really get. I’m not really sure what species this is, but I assume it’s either a mimic octopus, or somethng closely related. he mimic octopus can literally mimic the physical appearance and movement of fifteen different species, that we know of (including, but not limited to sea […]
If two tape worms infect the same host, they can either cooperate to thrive, or battle it out for complete control. A new study has found that the parasites actively sabotage each other in a competition to seize control of the host. Tape worms are nasty creatures. They live in the digestive tracts of vertebrates […]
In just 7 years, a disease called white-nose syndrome has killed more than 5 million North American bats, almost wiping out entire colonies. The disease has been reported in caves and mines of 25 states throughout the Northeastern U.S. and no treatment or practical way of halting the disease has been proposed. The disease is caused by […]
An exciting research found baby chicks also use the mental number lines employed by humans to count numbers, representing them upwards from left to right. The research and those to follow on other animals might help unravel how this basic mental construct, so essential to human intellect, evolved. Think twice before insulting someone by calling him a birdbrain - it doesn't do the birds justice.
Most spiders weave sticky, wet webs to trap their prey, but the feather-legged lace weaver spider, Uloborus plumipes, employs a totally "high-tech" strategy. It spins an extremely thin nano-sized web, which becomes charge with electrostatic energy. Just like dust latches on to your sweater, insects are attracted and stuck to the the web. Biologists believe they've figured out how the spider does all of this in a newly reported paper which might help the industry design and develop ultra-strong nano filaments in the future.
The Bangkok’s New World Mall is one of the most dystopian places on Earth – initially 11 stories high, now the building can only boast 4, and it has no roof. A population of fish thrived in the post-apocalyptic setting, but now, with the building being set for demolition, the fish are finally going to be […]
The great apes are suffering greatly from Ebola too - gorillas and chimps are facing the greatest threat ever, after Ebola has wiped out a third of the populations since the 1990s.
After a continuous decline in numbers, tigers are finally getting some good news. Indian authorities have announced that the number of tigers has increased by 50% in 7 years, from 1,400 to 2,226.
Chimps, our favorite primate cousins, communicate with each other through a complex gesture language, partially decoded by scientists. Depending on the situation and the gesture, chimps tell each other things like “Stop that,” “Climb on me,” or “Move away.” Now, an exciting new study found that chimps also communicate through vocalization. Researchers found that the primates would "speak" to their peers and relay what their favorite fruits are and where the best trees can be found.
In a groundbreaking analysis based on data extracted from hundreds of studies, scientists concluded that humans are on the verge of causing unprecedented and irreparable damage to the ocean environments. The patterns are clear, and extremely worrying, researchers say - but we still have time to act.
The New Zealand tuatara (Sphenodon) is one of those unique animals that warrants revision for biology textbooks. The lizard-like reptile that is the only survivor of a group that was globally widespread at the time of the dinosaurs uses its highly specialised jaws to slice its food like a "steak knife". Typically, chewing is associated with high metabolism in animals, but in this instance this is far from being the case.
Buttereflies are pretty awesome insects - the pupal transformation into a butterfly through metamorphosis is one of the most spectacular processes in the biological world. For one month, until February 16, Drexler University will exhibit a spectacular sample: a butterfly suffering from bilateral gynandromorphism - in other words, a butterfly that is half male, half female.
In 1833, biologist Constantin Wilhelm Lambert Gloger showed that animals with warm blood that live closer to the equator tend to be darker. The finding took surprised biologists at the time and now, a new study has shown that this applies for flowers too.
Only humans and great apes can recognize themselves when looking in a mirror, but new findings suggest that it's possible for rhesus monkeys to realize they're looking at themselves if trained properly. The findings bear important implications for humans as well, since they suggest patients with impairment of self-recognition can have their condition remedied with training.
