Wednesday, 16 January 2013

I ❤ wrinkly hands

So everybody thinks that pruned hands come from water seeping into the skin, it is actually  nerve response. It allows the skin to wrinkle. But why would humans have that? Well many experiments were executed and supplied the solution that wrinkled hands/fingers transport wet objects much more inefficiency then the standard hand form. Branching off of the hand wrinkles it is also believed that the toes also wrinkle because they would supply sure footing on slick surfaces. This find brings us into touch with our past and creates an interesting window into why our hands get super gross every time we go swimming.



http://www.sciencenews.org/view/generic/id/347439/description/Pruney_digits_help_people_get_a_grip

Wednesday, 9 January 2013

I ❤ Baby Sharks

Scientists have recently uncovered that baby sharks can sense and react to danger before they are even born. For example an embryonic bamboo sharks freeze in response to the dangers. What happens is that the shark is able to pick up the electrical fields released by the predators and therefore are able to react accordingly. Scientists began by taking captive bamboo shark eggs and presenting electrical fields or simply movement near them while underwater, and they froze in place so as not to attract attention.





http://www.wired.com/wiredscience/2013/01/baby-sharks-can-sense-danger/

Thursday, 3 January 2013

I ❤ White Throated Sparrows

Much like humans react to music birds react to the sound of surrounding bird calls. It has recently been found that birds react and display emotions while listening to other birds sing. For example during mating season the female sparrow will react to the male sparrows song as though it was soothing and pleasant music to a human.There are signs in the amygdala (The brains emotion center) of strong emotions when they hear possible female mates, and different emotions when hearing a competitive male singing nearby. Because of hormonal changes in the bodies of these birds they perceive the songs differently than the standard song.


http://www.nytimes.com/2013/01/01/science/birds-found-to-have-emotional-reactions-to-song.html?ref=science&_r=0