Quote:
Pet Rat Facts:
Order: Rodentia
Family: Muridae
Genus: Rattus
Species: norvegicus
Maximum Life-span: 2000 days
Average Life-span: 1000 days
Length: Head and Body - 80-300mm (3.14-11.81 inches)
Tail - 80-200mm (3.14-7.87 inches)
Weight: Adult - 250-400gm (8.81-14.1 Ounces)
Weanling - 40-50gm (1.41-1.76 ounces)
Birth - 5-6gm (.17-.21 ounces)
Heart Rate: 260-600 beats by minute
Blood Pressure: 115/90
Respiration rate: 65-115 breaths per minute
Temperature, rectal: 38.2C (100.75F)(311.35K)
Oxygen Consumption: 0.88 grams per hour (.03 ounces)
Age at puberty: 45-75 days
Breeding season: any time
Gestation period: 21-30 days (normally 21)
Litter size 2-24 (normally 8-12)
Sex ratioi: 46% Female, 52% Male
Weaning age: 25-30 days
Female Breeding Life Ends: 15-18 months
There you go
Courtesy of my Rat book (Rats - Susan Fox), I used to have a pet rat, and I got this book for my birthday that year. I don't have any pics of Scuffy, I think she lived for about 6 years.
Currently I have a pet cat, also female, her name is Delta.
I have more pics of her on my blog, (recent entry).
GA