For humans seeing butterflies fluttering around with their beautiful brightly colored wings is a joyful sight. However not for their natural predators like lizards, spiders, and birds. To them, the vibrant hues are a reminder of a bad-tasting species that are best avoided. For those not easily duped, some butterflies also have eyespots on their wings. According to researchers, this tricks would-be predators into thinking that the insect is a larger animal, like an owl.
Kids News - Science Articles
Honey, the rich gold liquid that we all love is the miraculous creation of industrious honey bees. However, while the delicious sweetener has been used for over 8,000 years, extracting it is still a laborious process that is stressful for both humans and bees.
What's better than meeting your favorite superhero? How about receiving a bionic arm from him? That's exactly what seven-year-old Alex experienced recently, when he met with Robert Downey Jr. aka Tony Stark!
Just a few weeks ago, NAO, the humanoid robot made headlines when it became Mitsubishi Bank's first non-human employee. Now the cute 23-inch tall robot that weighs a mere 5.5 kilograms (12.7 pounds) is in the news again. This time around NAO is helping students develop good handwriting skills.
Most animals that hibernate during cold winter months have thick coats of fur or layers of fat to protect them. However, the Rana sylvatica species of the wood frog that can be found in Alaska and the Arctic Circle has neither. Therefore this tiny amphibian has adapted by freezing and thawing itself depending on the external temperature.
Fifty years ago, on March 18th, 1965, Soviet Cosmonaut Alexei Leonov took the first spacewalk. It lasted just twelve minutes and almost ended in a disaster. That's because the vacuum of space caused his pressurized suit to inflate and become rigid, making it impossible for Leonov to re-enter the Voskhod 2 space capsule airlock. The quick thinking astronaut let out some of the precious air from his suit and despite severe decompression sickness, manage to stumble back in and live to tell his harrowing tale.
In 1996, Jan Scheuermann, a successful businesswoman and mother of two, began to notice her legs were not quite moving along with the rest of her body. A visit to the doctor revealed that she suffered from spinocerebellar degeneration, a rare genetic disease where the brain gradually loses connection to body muscles. By 2003, Jan had lost all ability to control her limbs and was paralyzed from the neck down.
Researchers have long suspected that hippos evolved from a family of plant-eating, semi-aquatic mammals called anthracotheres. The ancient animals that roamed freely all the way from North America to Asia inhabited Earth about 40 million years ago. However, scientists could never verify the theory since the only fossils of ancient hippos discovered thus far, dated back just 15 million years. Now thanks to Fabrice Lihoreau, there is finally some proof.