The Love of Animals
This site is for all the animal lovers in the world!
Friday, September 6, 2013
First Killer Whale Reintroduced to Wild Has Baby
Join The Green Society: First Killer Whale Reintroduced to Wild Has Baby: First Killer Whale Reintroduced to Wild Has Baby This is so awesome that I had to share the news. We are at least going down the right road...
Thursday, August 15, 2013
Thursday, August 1, 2013
Why Do Dogs Eat Grass?
Why Do Dogs Eat Grass? This question has made me wonder why and it's nice to get an answer. My black lab "Gracie" does this often. She is going on seven years old now so that makes her about middle aged and I always thought that had something to do with it. Learn new things everyday!
Warning cutie pie alert! Here is Tank, he's a Chorkie and the man of the house! He's now 3 years old but I came across his baby picture and couldn't resist.
Warning cutie pie alert! Here is Tank, he's a Chorkie and the man of the house! He's now 3 years old but I came across his baby picture and couldn't resist.
Friday, July 12, 2013
American Dog Breeds Hail From Pre-Columbian Times
Two Peruvian Hairless dogs stand at an archeological site in Lima, Peru.
Photograph by Pilar Olivares, CorbisAmerican Dog Breeds Hail From Pre-Columbian Times
The researchers were able to conduct this comparison between American, European, and East Asian dogs thanks to a large data set of mitochondrial DNA sequenced from thousands of dogs. They were also able to compare their modern sequences with 19 ancient dog genomes taken from remains found in Bolivia, Peru, Mexico, and Alaska.
Mitochondrial DNA comes from structures in cells called mitochondria, which function like battery packs, supplying energy for the cell's activities. They are inherited only from an organism's mother.
It's easier to compare genomes between individuals using mitochondrial DNA than using DNA from a cell's nucleus, explained Boyko, a National Geographic grantee.
Nuclear DNA comes from both the mother and the father, and the copies can swap pieces with each other in a process called recombination. This makes for an amazing variety of looks in the offspring, but creates enormous headaches for scientists trying to track down a population's origins.
"It gets complicated really quickly," Boyko said.
Buildup
The sheer scope of the canine genetic analysis is impressive, he said. Not only did the team look at breeds from the Old and New World, but they also looked at stray dogs in the Americas.
One hitch is the fact that the researchers were limited in the number of genetic markers they examined, Boyko said. The authors acknowledged as much in the paper, he added, and it shouldn't take anything away from the study.
Indeed, co-author Savolainen said he plans on looking at nuclear DNA in these dog populations to get a sense of how big the founding population might have been, and to pin down when their canine ancestors came over from East Asia.
The problem is that you need big data sets for the kinds of comparisons he wants to make, and there aren't many nuclear DNA data sets for dogs just lying around.
Researchers are working on building them, he said. "[But] I think it will be a couple of years before you can try this specifically on American dogs."
Thursday, June 27, 2013
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Thursday, June 13, 2013
Sunday, May 12, 2013
Friday, May 10, 2013
Friday, April 26, 2013
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Sunday, April 21, 2013
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Thursday, April 18, 2013
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Wednesday, March 20, 2013
Sunday, January 6, 2013
Tuesday, January 1, 2013
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