Usually pet rats live up to 2 years ! and street rats live 2 - 3 years !
Pet rats usually live to be about 4 years old.
Domestic rats typically live 2-3 years. Wild rats have a shorter lifespan, usually 1-2 years.
Sixteen
under ground and old tree stumps
are rats from the new or old world
The gestation period is usually 22 days, but can last as long as 25.
The Old Harry Rocks are England, and they have a stack and a stump.
They are sea rats from the old English times.
The Boniface Estate is a rundown old farmhouse where Mrs. Frisby and her family live. It is a significant location in the book "Mrs. Frisby and the Rats of NIMH" because it is where Mrs. Frisby meets the Rats of NIMH and learns about their extraordinary abilities.
Pet rats usually live to a maximum of three and a half years. The average age: two years old. This is why it's a good idea to purchase from a good breeder. Rats bred from healthy parents and born into a healthy environment generally live longer.
Stefán Karl Stefánsson who plays Robbie Rotten on Lazytown is will be 34 in 2009.