Regina rat just does not have time for silly photos.
Wednesday, February 28, 2007
Tuesday, February 27, 2007
Friday, February 23, 2007
Thursday, February 22, 2007
Clone rodents
Cloning hall of fame
Cumulina
In 1997, scientists cloned the first mouse from adult cells, calling her Cumulina.
Cumilina died at the age of two years and seven months – a relatively healthy age for a mouse. She gave birth to two litters during her lifetime.
Mice remain one of the more difficult species to clone.
Ralph the rat
Rats are particularly difficult to clone: the first, Ralph, was produced in 2003.
Early development in the rodents is different to other mammals: rat eggs "activate" as soon as they leave the ovaries, making it difficult to introduce new genetic material.
A chemical is needed to stabilise the embryo before cloning is possible.
Cumulina
In 1997, scientists cloned the first mouse from adult cells, calling her Cumulina.
Cumilina died at the age of two years and seven months – a relatively healthy age for a mouse. She gave birth to two litters during her lifetime.
Mice remain one of the more difficult species to clone.
Ralph the rat
Rats are particularly difficult to clone: the first, Ralph, was produced in 2003.
Early development in the rodents is different to other mammals: rat eggs "activate" as soon as they leave the ovaries, making it difficult to introduce new genetic material.
A chemical is needed to stabilise the embryo before cloning is possible.
Tuesday, February 20, 2007
Monday, February 19, 2007
Friday, February 16, 2007
Muskrat has men running
A recent break-in at an Iron Range tire shop had grown men screaming and jumping on desks.
What was first believed to be a giant rat by employees returning to work after a weekend turned out to be a misguided muskrat. The rodent had wandered through the front door during a three-hour span Jan. 26 while the shop’s interior was being painted....
What was first believed to be a giant rat by employees returning to work after a weekend turned out to be a misguided muskrat. The rodent had wandered through the front door during a three-hour span Jan. 26 while the shop’s interior was being painted....
Thursday, February 15, 2007
The ratty boys meet
Other than some boxing, wrestling and squeaking, the the little boys are getting along just fine in their initial meet and greets.
Wednesday, February 14, 2007
Whiskers!
"When the whiskers on one side of the rodents' face hit a surface, they slow down by around one-third, the team found. Meanwhile, those whiskers on the other side begin rapidly sweeping back and forth, even more broadly, in search of another contact point."
- From Proceedings of the Royal Society
Watch a rat's asymmetrical whisker activity...
- From Proceedings of the Royal Society
Watch a rat's asymmetrical whisker activity...
Mother Cat Adopts Pup Rejected by Mother
Introducing Lucy mouse and Ethel mouse
Introducing Lucy mouse and Ethel mouse. It was time to once again get mice, it's so hard not having them around. Lucy mouse, the larger of the two, is definitely the alpha female and does not want to be held while Ethel mouse does not mind a quick snuggle. Ethel mouse has already started chattering at me and accepting offered treats.
Monday, February 12, 2007
Thursday, February 08, 2007
Spidey Rat comes home
Spidey Rat is the new adoption rat. Spidey was pretty nervous, shrieking and nipping when he was first brought in. But now is is more excited about checking out the new home and licks my fingers.
Saturday, February 03, 2007
New-born lambs' Rottweiler 'mum'
New-born lambs' Rottweiler 'mum'
Rottweiler Molly showing her maternal instincts with lambs Lucky and Charm. They have a fearsome reputation, but one Rottweiler is proving that the breed has a softer side by helping to rear two lambs.
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