Some species of Argiope spiders, known also as writing spiders, make an extra silk zigzag pattern on their webs. These white decorations, called stabilimentum, reflect UV light, but their role is still unclear to scientists.
Although Argiope spiders do bite, they are not considered dangerous to humans.
The web-decorating Argiope Spider – Picture Gallery.
Photo by pyrodonic via Flickr
Photo by Todd [...]
Based on features of the skeleton, birds are considered to be dinosaurs’ descendants, so it can be told that dinosaurs are not extinct, but they adapted to fit the environment. The story is just opening up, because there are a lot of interesting issues for scientists to explore, for example the origin and the purpose [...]
Mantis shrimp close-up.
Photo by prilfish via Flickr
With trinocular vision, depth perception and the ability to distinguish colors, ultraviolet, visible and infra-red light, the eye of a mantis shrimp is considered by the scientists one of nature’s greatest engineering masterpieces.
Photo: X-ray Image of a Lightning Strike
The first X-ray images of a lightning strike have been captured by a lightning-fast camera which was required to take ten million images per second. Although scientists have known for several years that lightening emits radiation, until now they didn’t have the technology to take X-ray images quickly enough to [...]
Showing the passing character of deciduous trees’ green vivid beauty, autumn teaches a lesson hard to learn: how to let go. The colors of the autumn leaves, turning now from gold to scarlet tones, offer a warm celebration and announce the changing seasons with all the preparations for the winter interlude and further, for a [...]
In prehistoric times, more that 30,000 years ago, early humans used natural pigments or charcoal to paint on the walls and ceilings of the caves. Like every painting, the cave paintings reflect how people who created them looked at the world, offering a glimpse of their life and belief system that can help anthropologists propose [...]
Science has confirmed in recent years that our bodies have two nervous systems: the central one and an independent network of neurons, neurotransmitters and hormones positioned in our gut, the so called enteric nervous system.
Even if divided, the primary brain and the gut remain connected by the vagus nerve, the longest of the cranial nerves. [...]
Food packaging has become an important part of the food chain and, when the interaction between food packaging and environment cause problems, perhaps we have to start paying more attention to green food wrapping materials, in order to reduce the petroleum-based plastic addiction and maintain green and clean landscapes.
When wrapping a sandwich or some cheese, [...]
People spend a lot of time listening to music, perceiving it as mood-regulator. Because it appears to have a profound impact on our emotions, reducing the day to day tensions, science is trying to find out what happens in the brain when hearing music and how it acts to touch our soul.
Since sound, voices, rhythm [...]
Do you remember how difficult was to tie your shoelaces as a child? Imagine how it could be to wake up one day incapable to do that and not in the mood to learn the moves.
The story behind the process of learning to tie shoelaces is our innate ability to assimilate new motor skills due [...]