What if human beings had the ability to heal themselves every time they spoke? It sounds like a superpower, but that’s what is happening every time your cat purrs. And that’s not all. Purring is a richly expressive felid vocalization, reflecting many of the most extreme moments of a cat’s life, both positive and negative. Photo credit: Wikimedia commons Why Cats Purr Why do cats purr? Most of the time, humans express pain or anxiety very differently from pleasure.

A lot of human beings are monogamous, but did you know that hardly any other animals practice any form of monogamy? In nature, monogamous pairing refers to mating systems where a pair of animals stick together to raise their offspring. That “family” structure is actually the main feature of the monogamy. This isn’t quite the same thing as sexual monogamy, though the two usually go hand in hand. According to the National Science Foundation, scientists currently estimate that only about 3-5% of the mammal species on Earth practice monogamy, whether for the short term or the long term.

While many people love snakes and even keep them as pets, others are flat-out terrified of them. Fear of snakes is so ubiquitous that snakes are traditionally used to symbolize evil in mythology, literature, and film. Of course, snakes are not evil, and many of them are quite docile, even friendly. But a number of species can be quite dangerous if you cross them in nature, especially if they feel threatened.

Even as many species are threatened with extinction, scientists continue to discover fascinating new creatures all over the world. Some of these discoveries are particularly fascinating. Here are 10 of the most bizarre animals recently discovered and identified by scientists. 10. Vampire Flying Frog Vampire Flying Frog (Photo credit: Australian Museum) This recently discovered animal is a just one of over 1,000 new species recently discovered in the Mekong region of Vietnam by the World Wildlife Fund (WWF).

Did you know that one of the largest dog in history was a Great Dane by the name of Zeus? He stood at a whopping 112 centimeters (44 inches). Dogs come in all shapes and sizes, with some being as small enough to fit in a handbag, whereas some are large enough to smother a fully grown human. There are so many different breeds, but here is a list of the 10 of the largest dog breeds in the world.

While domesticated dogs are almost always extremely friendly and amicable, on rare occasions, dogs can be dangerous. There are many different breeds of dogs, but the most dangerous dog breeds are quite well known, however looking at the top 10 most dangerous dogs by bite fatalities came up with some interesting results. The Journal of the American Veterinary Medical Association conducted a twenty year study on the most dangerous dog breeds, and here are the top 10 most dangerous dog breeds based on the amount of fatalities they have caused:

The "buffalo" burger - but is it really buffalo? (Photo Credit: Wikipedia) Some more ambitious restaurants have begun to serve more exotic meals to compete in a saturated market. One particular choice being made more readily available to the adventurous foodie is the Bison burger. Most report that Bison meat is a lean and delicious alternative to the more common beef burger. However, the availability of this meat confuses many casual diners.

Dogs are known for their love of eating. You will not find a dog owner who has not had to deal with their pooch drooling and begging right at their feet while they eat dinner. It’s hard to deny the shiny puppy eyes when you know exactly what they want. If you have raised a puppy then you have probably heard that it’s not good to feed them chocolate. But why is chocolate bad for dogs?

Commonly thought to be a mammal, the penguin is actually a flightless bird, which spends half of its life underwater and the other half on land. Emperor penguins with chicks (Photo credit: Wikipedia) Penguins have recently seen lots of media attention, with the box office hit Happy Feet and the documentary March of the Penguins that told the story of the long migrations of the aforementioned Emperor Penguins. Still, if you want to check out some cool facts about penguins, take a look at these 25 facts about everyone’s favorite waddling birds:

The Clothes Moth and Your Ugly Christmas Sweater Have you ever scrounged through your drawers to find that one ugly wool sweater you got last Christmas, only to find it had been mercifully torn apart by moths? Tineola bisselliella, the clothes moth, can cause extreme damage to fabrics, furniture, books and fur. Most people know that moths can destroy clothes, but they are not just eating through the cloth to get to something else.