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I can answer any questions about pet rats, but you will probably be able find answers to simple questions more quickly on my website at If you have a life-threatening emergency you can try calling me at 530-899-0605. I am not usually on the computer on the weekend.

Experience in the area

I have been "The Rat Lady" since 1985 and am recognized as one of the world's experts on pet rats. I have 3 published books and already answer lots of questions about rats daily.


President of Rat Assistance & Teaching Society


I am a monthly columnist for Pet Business magazine, and my writing has appeared in other magazines. I have 3 published books.


BA in Animal Behavior

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Isabel08/11/16101010Thank you:) I just wanted to be .....
Marie-Claire06/28/16101010Thanks for the answer. It's true that .....

Recent Answers from Debbie Ducommun

2016-08-21 Older rat died, and left behind one insecure rat.:

Hi Lauren,  I'm sorry to hear you lost Ralphie. I'm sure you will miss him terribly. Some male rats stay aggressive toward other rats even when they have been neutered. You could certainly get 2 more babies

2016-08-20 rat running around and vibrating?:

Hi Isabel,  Since the vibrating usually occurs in female rats when they are in heat, you can check to see when a rat is in heat. Normally their vagina is puckered closed. When they are in heat, it gapes

2016-08-17 Older Rat Having Lots of Issues:

Rats with a PT usually do not seem to suffer. They eventually need to be hand fed. As long as he can still eat soft food or drink liquids with help (syringe or eyedropper)and appears to be comfortable

2016-08-17 Older Rat Having Lots of Issues:

Hi Lauren,  I'm so sorry to hear Ralphie is sick, Along with his head tilt, does he have poor coordination?  If so, he probably has a pituitary tumor.  You can read more about this in the Tumors article

2016-08-15 New Cage Mate?:

Hi Stacy,  I'm sorry your girl is still having health problems. Does she have poor coordination?  A pituitary tumor (PT, something that is very common in older female rats,)is the most likely cause of


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