The wolf spider is the only species of spider that carries its offspring this way -- live, hatched and wriggling on her back! After a gestation of 9 to 27 days (dependent on temperature) during which the eggs are carried around in a silk globe attached to the mothers stomach, the offspring hatch and climb on to her back. They stay there until they're ready to hunt alone.

Check out this experiment...

I learned about something called axial precession in astronomy class several years ago, which is the idea that as something rotates along its axis, it will slowly trace out a cone if the weight of the object isn't equally distributed. In the case of Earth, Earth isn't a perfect sphere as many of us may think it is -- it actually bulges out in the middle enough for it to allow this phenomenon to occur. At the time, all I really took from this concept was how fascinating it is for the north axial pole to move 1° every 72 years from where it is now, and complete one full cycle every 26 000 years. However, I never managed to understand how this concept could fit in to my understanding of why ice ages[1] occur, and why they too follow a specific ...

The brownish staining of a child's tooth enamel is due to excessive ingestion of fluoride. Fluoride is a mineral compound that is useful in preventing dental caries. It is thought to work by strengthening the mineral composition of tooth enamel making it more resistant to acid attacks. It may also reduce the acid-producing ability of microorganisms in dental plaque. The water supply may naturally provide fluoride, or it may be added. Mild fluorosis causes white mottling of the teeth; severe cases show brown staining and usually occur in areas where the level of fluoride in the water is many times greater than the recommended level of 0.7 to 1.2 parts per million. ...

This bird, known as the elephant bird, went extinct sometime in the 17th century as a result of human activity. Although flightless, the birds were widespread, inhabiting the northern to the southern tip of Madagascar.

Not only are they three times the size of an ostrich, they are also known for their massive egg. These fossils are so rare that one is currently being auctioned and is expecting to go for an upwards cost of $40 000..

Genetic testing of giant squid corpses discovered all over the world has found that not only are they all the same species, they have surprisingly low genetic diversity. This suggests that some time in the recent past they were pushed to the brink of extinction, but managed to rebound and are now found throughout the worlds oceans.

The emerging field of synthetic biology is affirming itself at the forefront of modern science, possibly offering practical, effective solutions to many of the worlds most pressing problems. Described most simply as the ‘design and construction of new biological entities…’  synthetic biology, at first, seems to be a natural progression from twentieth century genetic engineering . However, synthetic biology sets itself a slightly different ethos, the central ‘from the bottom up’ dogma of the field means that organisms are designed, programmed, built, not just slightly altered or adjusted.

Origin & Scope

Although synthetic biology has only recently entered the scientific limelight, it was first mentioned back in 1912 by French biologist Stephan ...

This snow tunnel near the Mutnovsky Volcano in Russia is almost a kilometre long. These tunnels form under the snow fields in deep ravines at the end of the summer thaw. Meltwater flows through glaciers towards lower elevations, finding an outlet at the terminus of the glacier and carving the ice on the way. The Mutnovsky Volcano is found in the southern part of the Kamchatka Peninsula.