Sunday, March 13, 2011

Human differences with the chimp

DNA changes have produced an enormous impact on human evolution. From the latest findings, published in the journal Nature, researchers reveal not only what humans acquired during evolution, but also explain what loss is experienced. 

From the study, the loss of DNA is one of the millions of reasons why humans differ from primates closest to the chimpanzee.

As is known, the human and chimpanzee genomes have 96 percent similarity. However, with the passage of evolution, there is DNA that is no longer found in humans but remain in the chimpanzee.

One is the DNA that serves to regenerate bone in the human male penis. However, the loss of this DNA has a positive impact that the growing size of the human brain. Then, what is the reason that makes the bones in the human penis evolved to disappear?

"In primate species with a penis bone, females tend to mate with many males," said David Kingsley, a researcher from Stanford University, as quoted by LiveScience, March 11, 2011. "The bones in the penis to function for a penis capable of draining the sperm of other males that already exist in the vagina," he said.

Thus, Kingsley said, the male's sperm that will fertilize the female egg cell.

"The loss of bone in the male penis can also be seen in another species that evolved toward the life of monogamy," says Kingsley. "So, with more people living with a partner and conduct reproductive monogamy, the penis no longer has a function to deplete his female reproductive organs," he said.

Related Articles

3 comment:

林磊 said...

Lerbron James Shoes For Sale
michael kors uk
louis vuitton outlet online
Michael Kors Handbags Outlet
Abercrombie and Fitch Outlet
Christian Louboutin Outlet Authentic sneakers
Louis Vuitton Handbags Outlet
coach outlet
ray-ban sunglasses,ray ban sunglasses,ray bans,rayban,ray ban wayfarer,raybans,ray ban glasses,ray ban aviators,ray ban clubmaster,ray ban eyeglasses,cheap ray bans,ray bans sunglasses,ray ban aviator,ray bands,fake ray bans,ray ban prescription glasses,ray ban outlet,ray ban canada,ray ban sunglasses sale,ray ban sale
michael kors uk
ugg boots sale
nike trainers
Louis Vuitton Handbags Outlet Stores
louis vuitton handbags
uggs sale
cheap ugg boots
canada goose jackets
Ralph Lauren UK
hollister uk sale
Hollister Cheap Hollister Clothing Outlet Store
Mont Blanc Pens
Louis Vuitton Handbags Discount
michael kors outlet
ugg outlet
Coach Outlet Discount Sale

Zheng junxai5 said...

cheap toms
timberland boots
oakley outlet
beats by dre outlet
jordan retro 13
air jordan shoes
lebron james shoes 13
true religion outlet
nike running shoes for men
north face jackets
tiffany and co jewelry
longchamp outlet
gucci outlet online
louis vuitton bags
michael kors outlet
louis vuitton purses
ray ban outlet
nike store uk
coach factory outlet online
coach outlet
true religion outlet
kd 8
michael kors handbags
tiffany and co
cheap jordans
rolex watches
cheap jordan shoes
tods sale
michael kors outlet
nfl jerseys
coach factory outlet online
adidas superstar
michael kors outlet
adidas originals
oakley outlet
coach outlet store
cheap oakleys
cheap air jordans
coach outlet
coach outlet

chenlina said...

coach outlet
vans shoes sale
jordan 3 white cenment
michael kors outlet
jordan concords
ralph lauren
coach outlet
christian louboutin outlet
oakley outlet
cheap oakley sunglasses
fitflops sale clearance
louis vuitton outlet
christian louboutin shoes
adidas yeezy
oakley sunglasses
jordan 8
cheap toms
nike free run
jordan 4
oakley sunglasses
coach factory outlet
gucci outlet
louis vuitton handbags
ray ban sunglasses
jordan retro
louis vuitton outlet
air jordan pas cher
louis vuitton outlet
ralph lauren outlet
michael kors outlet
coach outlet
jordan retro
coach factory outlet online
coach outlet store online
burberry outlet
coach factory outlet
adidas yeezy 350
lebron 11
marc jacobs handbags
polo ralph lauren

Post a Comment