Releasing pet fish into a lake might sound like a kind thing to do, but in fact, it is quite the opposite. Teller Lake in Boulder, Colorado, is making headlines for a bizarre surge in its goldfish population, after someone apparently dumped three or four of them in its waters a couple of years ago. The lake is now home to a whopping 3,000 to 4,000 goldfish that are putting its delicate ecosystem in danger. The fish have multiplied beyond control – they’re eating up all the resources, spreading unnatural diseases, and threatening to overrun the lake’s natural species. Colorado wildlife officials say that humans are to blame. “Dumping your pets into a lake could bring diseases to native animals and plants as well as out-compete them for resources,” said Colorado Parks and Wildlife (CPW) spokesperson Jennifer Churchill. “Everything can be affected. Non-native species can potentially wipe out the fishery as we’ve put it together.” Read More »

8-year-old Gabi Mann, from Seattle, has some very unusual friends who shower her with gifts almost every day. Ever since she started feeding her neighborhood crows, they began returning the favor and bringing back all kinds of trinkets. Gabi’s unique relationship with the neighborhood crows began in 2011, when at age four, she was prone to dropping food. Soon, the crows were always watching for her, hoping to get a bite of the crumbs she dropped. As she got older, she began to feed them consciously – she would share her lunch with them on the way to the bus stop. It wasn’t long before crows were lining up in the afternoon to greet her at the stop. In 2013, Gabi started feeding the birds regularly, instead of sharing her scraps with them. Along with her family, she would fill the birdbath in the backyard with fresh water every day, cover the bird feeder platforms with peanuts and throw handfuls of dog food on to the grass. Soon, the crows automatically lining up on the telephone lines, waiting for their treats. Read More »

While most young birds rely on their parents for protection, the chicks of the Amazonian Cinereous Mourner have their own survival tactic. In order to avoid being eaten by predators, they actually mimic poisonous caterpillars! On hatching, the chicks are covered with bright orange, spiky feathers that make them look like massive caterpillars that use bright colors to warn predators of their toxicity. And to make their camouflage even more effective, they even writhe about much like caterpillars. “These traits give it a resemblance to a hairy, aposematic caterpillar,” said Dr. Gustavo Londoño, a biologist at the University of California. “Because predation is the main cause of avian nest failure, selection should favor strategies that reduce the probability of nest predation. The caterpillar we encountered measured 12 cm, which closely matches the size of the L. hypopyrra nesting. The striking morphological similarity is the caterpillars’ orange ‘hairs’ with white tips, which match almost exactly the nestling’s elongated orange downy feather barbs with bright white tips.” Read More »

As if snakes weren’t scary enough on their own, some apparently have spiders for tails to raise the horror factor to infinity . The aptly named ‘spider-tailed viper’ has a bizarre arachnid-shaped appendage that it uses to attract unsuspecting prey. According to science writer Ed Yong, the fearsome snake was formally described only nine years ago, in Iran. Its existence has been known since the sixties, but because only one specimen had been spotted, its tail was dismissed as a deformity. However, further investigations in the area revealed the tail was actually a defining characteristic of a whole new species of snakes. Read More »

There are several creatures that possess a certain tolerance to subzero temperatures, but none as amazing as the Alaskan Wood Frog. This tiny amphibian can survive being almost completely frozen during winter, only to miraculously come back to life as soon as spring arrives! For days, even weeks weeks at a time during its period of winter hibernation, over 60 percent of the frog’s body freezes;  it stops breathing and its heart stops beating. Its physical processes like metabolic activity and waste production come to a halt. “For all intents and purposes, they are dead,” said Don Larson, a Ph.D. student at Fairbanks, Alaska. As per his research, wood frogs can survive long winters where temperatures range between -9C to -18C. In fact, it can go through 10 to 15 freeze/thaw cycles over the course of a single season. Read More »

While camera traps have been used in ecological research for decades, luring animals towards these traps requires constant innovation. And you’ll never believe what they’re now using to attract wild jaguars – Calvin Klein Obsession for Men! According to Miguel Ordeñana, a biologist with the Natural History Museum of Los Angeles and an expert on camera traps, the idea belongs to a Bronx Zoo researcher who tried a bunch of different scents before discovering the jaguar’s affinity for Calvin Klein. What’s special about the cologne is that its two main ingredients – civetone and vanilla extract – create a combination that’s irresistible to these big cats. Read More »

Located between the towns of Grana and Casorzo in Piemonte, Italy, is a very unique tree – well, they’re actually two trees, one growing on top of the other. Locally known as ‘Bialbero de Casorzo’ or the ‘double tree of Casorzo’, this natural oddity consists of a cherry tree growing on top of a mulberry tree.

No one really knows how the cherry tree managed to take root and survive in such a bizarre position. Locals believe that a bird might have dropped a cherry seed on top of the mulberry tree, which then grew its roots through the hollow trunk to reach the soil below.

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Mark Tyoe is a talented chainsaw artist and the co-owner of Wintergreen Knoll Chainsaw sculptures in the Adirondack Mountains of Upstate New York. He runs the business along with his wife Linda; together, they sell Mark’s unique chainsaw carvings that he’s been making since the 1990’s. Mark is really good at transforming a solid block of wood into a beautiful sculpture, using nothing but a chainsaw.

“Everything I do on my carvings is with a chainsaw,” he said. “I’m kind of a purist about using one tool.” A chainsaw is hardly the ideal tool for artists, so it’s really a wonder that Mark manages to use one to create such delicate details. He doesn’t grind or sand, and he doesn’t use screws, nails or paint.

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The northern clingfish is a species of salt-water fish that truly lives up to its name. The remarkably strong fish has such high suction powers that it can pick up and hold on to stuff that’s almost 300 times its own body weight. It can easily outperform all sorts of man-made suction cups. Scientists are now actively studying the fish so they can mimic its design and create a new class of suction devices.

There are currently around 160 known varieties of clingfish in the world, each with its own unique characteristics. There’s a tiny one that sticks itself to the individual spines of sea urchins, a deep-sea variety with not much of a sucker, and a giant one that’s about the size of your forearm. One of the most well-known varieties is the northern clingfish, thanks to studies conducted by biologist and researcher Adam Summers, from the University of Washington.

Native to the Pacific Coast of North America, the northern clingfish lives in rocky intertidal environments, where strong waves and currents can toss them out at any moment. In order to survive in its natural habitat, the clingfish has evolved an adhesion disc that covers about a quarter of its belly. Using this disc, it can stick on to almost any surfaces.

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The moor frog certainly cannot turn into a prince with true love’s kiss. But this seemingly uninteresting amphibian is capable of something quite spectacular – it changes color from a boring brown to an azure blue, just to be able to distinguish between genders during mating season. The ‘before’ and ‘after’ pictures are really quite unbelievable – it looks they’re two different frogs.

A fully grown adult male moor frog is up to seven centimeters long and reddish-brown in color. But every year, between March and June, the frog exhibits chameleon-like tendencies. During this period, the frogs emerge from their winter hibernation and are naturally in the mood to procreate. They populate the ponds in the lowlands of Central and Southern Europe, completely filling the air with their mating calls. The sounds they create are similar to the noise of air released from a bottle under water.

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Deep in the western Amazon rainforest, live butterflies that drink turtle tears. That sounds like a line straight out of a fantasy novel, but it’s one hundred percent real life! It’s an unusual sight – swarms of butterflies flocking at the eyes of yellow-spotted river turtles, trying to get a sip. The poor turtles keep ducking or swatting, but the butterflies persist until they’ve had their fill.

According to Phil Torres, a scientist at the Tambopata Research Center in Peru, the butterflies are attracted to turtle tears because the drops of liquid contain sodium, a mineral that is scarce in the western Amazon region. While turtles get plenty of sodium through their carnivorous diet, the herbivore butterflies need an extra mineral source.

Torres explained that the western Amazon rainforest is over 1,000 miles away from the Atlantic Ocean – a prime source of salt. The region is also cut off from the mineral particles blown towards the west from the Andes Mountains. Most of these windblown minerals are removed from the air by the rain before they have a chance to reach the western Amazon. These factors contribute to the extremely low levels of sodium. So the butterflies have to turn to the best source available to them, and that include turtle tears, animal urine, muddy river banks, puddles, and sweaty clothes.

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It’s hard to imagine a fragile spider killing and eating a full-grown bat. I mean there’s no way a tiny spider could have any sort of muscle power over a fully grown bat, right? Believe or not, there are eight-legged bugs out there that can pounce on bats and eventually devour them. And when they can’t, they rely on their superior web-spinning skills to get the job done. One of the earliest sightings of bat-eating spiders occurred way back in 1941, when Indian scientist G.C. Bhattacharya (of the Bose Research Institute) walked into a cowshed in a village near the city of Calcutta. In a letter to an unknown publication, he wrote a detailed account of his experience: “Entering into the cowshed, I noticed a pipistrelle bat struggling to drag itself out of a crevice between two bamboo strips of a wall and a big house-spider was seen firmly gripping the former by the neck with its powerful mandibles.” No matter how much the little bat kicked, and screamed and flailed, the spider held on with a death-grip. “There was intermittent gasping and screaming of the bat,” Bhattacharya wrote. Eventually, he focused a torch on the spot and as soon as the light fell on the pair, the bat screamed loudly and managed to drag itself through a certain distance on the matted shed wall. About 20 minutes later, the bat, thoroughly exhausted, stretched out its wing and gave in.   Bhattacharya then captured both victim and predator in a glass jar and took them home for closer observation. The next morning, he found the spider resting peacefully at the top of the jar, while the bat lay dead at the bottom, untouched. It had visible injuries to its neck and had died sometime during the night.

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Looking at a photo of Hemeroplanes triptolemus, nine out of ten people would swear it’s a snake. But look closer, and you’ll realize there’s something peculiar about it – the body is unusually short and ends abruptly with a large reptilian head. The truth is, it’s not a snake at all. The Hemeroplanes is actually a caterpillar pretending to be a snake. And it does a darn good impression of the deadly creature, often fooling curious travelers and predators alike. Hemeroplanes are moths of to the Sphingidae family, found in many parts of South America, Africa and Central America. In the larval form, they are capable of expanding their anterior body segments to closely resemble a snake, complete with reptilian scales and scary eyes. To make their mimicking act even more believable, the harmless caterpillar will sometimes even snap at potential predators. Of course, they have no real fangs so they can’t really do any serious damage, but their appearance is convincing enough to scare even humans away,

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Crows are known to be highly intelligent birds, and it looks like they can now teach us a thing or two about recycling and stealing. The Asian Jungle Crow, a large-billed crow, actually builds its nest out of coat hangers that it steals from people’s homes! Crows make use of pretty much anything they find lying around to build their hardy nests. House Crows generally build crude structures, made of interlocking twigs gathered from surrounding trees and shrubs. They weave the twigs together with little pieces of metallic wire that strengthen the nest structure. In some nests, the clever crows incorporate knotted lengths of thick plastic instead. But perhaps the most amazing crow nests are the ones built around Tokyo, Japan. Twigs and other natural materials are hard to come by in the busy metropolis, so the birds settle for the next best thing, and that seems to be coat hangers. You have got to see pictures to believe it! A blogger had posted some of these images way back in 2005, after solving the mystery of the missing hangers from her back yard. But it isn’t just the one nest – it seems that Japanese Jungle Crows are compulsive collectors of hangers!

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Human zombies might be a figment of the imagination, but ‘zombie bees’ actually exist. They are ‘created’ when regular honeybees get infested with a particular type of parasite. The bees begin to display highly erratic and bizarre behavior that’s very zombie-like. These infested bees were first discovered in 2008 in California by John Hafernik, a professor of biology at San Francisco State University. Ever since the initial discovery, zombie bee-sightings have been reported in Oregon, Washington State, California and South Dakota. According to Professor Hafernik, “They fly around in a disoriented way, get attracted to light, and then fall down and wander around in a way that’s sort of reminiscent of zombies in the movies. Sometimes we’ve taken to calling it, when they leave their hives, ‘the flight of the living dead.’” The culprit here is the Apocephalus borealis, a parasitic fly that is known to implant its eggs in ants. The fly larvae live off the ants’ brains, dissolve their connective tissues and eventually finish off the ants. Researchers now have reason to believe that the flies have found a new home for their eggs – European honeybees that are common in the United States. The flies lay their eggs in the bees that eventually hatch, wreaking havoc in their hosts’ bodies.

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