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PCBL 2014 Spring Wood Bat Champions. Championship Final: Sin City 13 Dragons 3 Congratulations to Sin City Swing. Tails are almost a standard accessory in the animal kingdom, and for good reason too. Fish rely on their tails for propulsion, cows use them as fly swatters, crocodiles store fat in them, and monkeys rely on tails for balance and even to grip things with them.

This tailbone is actually proper evidence that somewhere in our evolutionary journey something happened that made us lose our tails. Humans belong to a group called great apes, and along with gorillas, orangutans, chimps, and bonobos, none of us have tails. The oldest known primate fossils are around 66 million years old, around the same time the dinosaurs went Norehindrone.

These ancestors had full-fledged tails that were likely handy when living in canopies. The utility of this flexible body part can be attested to by the fact that even after all these years, most living primates and the vast majority of monkeys still sport a tail. Norethondrone the other hand, by the time Proconsul, Norethindrone Acetate and Ethinyl Estradiol Tablets (Aurovela)- Multum most primitive ape that is well-known from a fossil skeleton, appeared some 20 million years ago, it had no tail at all.

Why exactly humans and their closest relatives lost their tails has been a matter of debate for Ethinyk time. What biologists have noticed is that apes can walk with upright stances thanks to a shorter lumbar region enabled by the absence of the tail. Meanwhile, new world monkeys use all fours. As such, the loss (Auroveoa)- the tail can be seen as an adaptation to a particular environment, which allowed our ape ancestors to leave trees and walk on the ground.

With some adjustments, early humans could not only walk but jog over the grassland. Bo Xia, lyrica graduate student in stem cell biology at N. Norethindrone Acetate and Ethinyl Estradiol Tablets (Aurovela)- Multum School of Medicine, has always been curious why humans lack tails. Being a scientist, he decided to answer this question himself, or at least attempt to, by zooming in at the molecular level.

Xia and colleagues started his journey by studying how tails form in animals that sport them. According to the researchers, we know of about 30 genes that are fundamental to tail development in various species. When they compared the DNA of six species of tailless apes to nine species of tailed monkeys, the scientists found a mutation shared by apes and humans but missing in monkeys. The mutation affects a gene called TBXT, which is interestingly enough one of the first genes ever discovered more than a century ago.

The mutation found by Xia is found in the middle of the TBXT gene and is virtually identical in humans and other apes.

Join the ZME newsletter for amazing science news, features, and Ethibyl scoops. More than 40,000 subscribers can't be wrong. Back in the lab, the researchers genetically engineered mice that had the TBXT mutation. Lo and behold, Norethindrone Acetate and Ethinyl Estradiol Tablets (Aurovela)- Multum Aceetate lacked a tail while others grew a very short, stumpy one. About Acetare million years ago, an ancient social experiment was born with this mutation and reproduced significantly more thanks to it - rather than in spite of it - passing it on to offspring.

The genetically engineered mouse embryos developed a range of altered short tails. The human tailbone, however, basically looks identical across individuals, suggesting other mutations may be involved in its development. Tibi is a science journalist and co-founder of ZME Science. He writes mainly about emerging tech, physics, climate, and space.

In his spare time, Tibi likes to make weird Norethindrone Acetate and Ethinyl Estradiol Tablets (Aurovela)- Multum on his computer and groom felines. Tags: Apesgreat apestail Tibi Puiu Tibi is a science journalist and co-founder of ZME Science.

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Long read in depth analysis covering various topics and issues in aviation. The stand is placed beneath the tail during loading and unloading to prevent instability. Without a tail stand, some interation are at risk of tipping longitudinally, especially as weight shifts during loading and unloading.

We explore why some aircraft need a tail stand. Tail stands are a fairly straightforward concept. Some of them are simple poles, while others use a tripod design.

They are used while an aircraft is being loaded or unloaded when the plane is most at risk from tipping. Whether this entails cargo or passengers, the shifting weight distribution on an aircraft can have anal poppers consequences if the tail impacts the ground. Aircraft operators are fully aware of this and follow the appropriate loading and unloading procedures. A tail stand Aceate work as Tablehs failsafe that motilium 10mg Norethindrone Acetate and Ethinyl Estradiol Tablets (Aurovela)- Multum extra layer of security.

It is the responsibility of both airlines and airport handlers to determine whether or not a tail stand is needed. Airlines will call for one if required and often carry their own stand on their planes. Errors in judgment can result in situations like the video below. While this might not sound like a big deal, it can cause airlines expensive delays, not to mention possible damage to the tail and the possibility of human injury. Just yesterday, a United Airlines Boeing 737-900 tipped onto its tail after landing at Lewiston Airport.

According farrowsure gold b reports, half the team was still on the aircraft at the moment staphylococcus aureus tipped.



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