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Reviews:
Among the Impostors by Margaret Peterson Haddix
Berenstain Bears Accept No Substitutes by Stan and Jan Berenstain
Better Than Running at Night by Hillary Frank
Bleach 5 by Tite Kubo
Bleach 6 by Tite Kubo
Bleach 7 by Tite Kubo
The Bone Man by Frederic S. Durbin
Buy Jupiter by Isaac Asimov
Castro Valley by Devon Weston, Robert Phelps, Lucille Lorge
Cats Are Not Peas by Laura Gould
Chain Letter 2: The Ancient Evil by Christopher Pike
Cross Bones by Kathy Reichs
The Dante Club by Matthew Pearl
Don't Ask by M. Rickert
Dragonhaven by Robin McKinley
Finisterra by David Moles
Fragrant Goddess by Paul Park
Franny and Zooey by J.D. Salinger
Good Omens by Neil Gaiman and Terry Pratchett
Happy Halloween Stinky Face by Lisa McCourt
How Big is Your God? by Paul Coutinho
Island of the Blue Dolphins by Scott O'Dell
Jingo by Terry Pratchett
Letters from Iceland by W. H. Auden and Louis MacNeice
Miss Bianca in the Orient by Margery Sharp
N is for Noose by Sue Grafton
O is for Outlaw by Sue Grafton
Olivia by Ian Falconer
Olivia Saves the Circus by Ian Falconer
Osama Phone Home by David Marusek
Pippi Longstocking by Astrid Lindgren
Return of the Indian by Lynn Reid Banks
Sleep No More by Greg Iles
Stray by Benjamin Rosenbaum and David Ackert
Track of the Cat by Nevada Barr
The Turret by Margery Sharp
The Twilight Year by Sean McMullen
Two Weeks After by M. Ramsey Chapman
Unpossible by Daryl Gregory
Urdumheim by Michael Swanwick
Who Brought Tulips to the Moon? by S.L. Gilbow

Miscellaneous:
Betrayed by Elmo
BTC Database Complete
The Last Few Days
Neighbor Cats

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Comments for Cats Are Not Peas

Cats Are Not PeasCats Are Not Peas: 12/06/07

Cats Are Not Peas by Laura Gould is the best explanation of calico cat genetics I have ever read. It is also one of the best science books for non-scientists I have ever read. Heck, it is one of my all time favorite books.

Cats Are Not Peas is a memoir of Laura Gould's journey to discover why her calico cat was different. She like the rest of us had always heard that calico cats are always female but she had a male calico cat (George). She wanted to know why her cat was male.

The reason, she learns, is that orange and black genes are carried on the X chromosome. White is a color that isn't carried on a sex chromosome. So if you have an orange, black and white cat (a calico) or an orange and black cat (a tortoiseshell) then you have to have a cat with two X chromosomes. In other words, you have to have a female cat.

So where does George fit into the equation? Laura had him genetically profiled. Turns out George was a chimera. He was the result of two or more fertilized eggs blending together into one individual. So he had at least two X and at least one Y chromosome. And that's how you get a rare boy calico.

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Comment #1: Thursday, December, 6, 2007 at 21:23:50

Cereal Girl

That is a fascinating tail... I first heard about chimeras by watching C.S.I. but I thought they were so rare I'd never hear of one outside of fiction."



Comment #2: Friday, December, 7, 2007 at 07:21:03

gautami tripathy

I like the title!

reading room"