Also, ask if they have been kept as single sex groups only – female rats can get pregnant at 5 weeks old, and you don’t want to wake up one morning and find your cage full of babies! Sadly, many pet ...

When my kids’ four pet rats escaped, they made a new friend. He was burly. Brown. The bad-boy of backyard rodents.

Young rats leave their mothers after 3 to 4 weeks and start having their own babies when they are around 3 to 5 months old. While pet rats can live longer, the average wild rat doesn't live for ...

WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames climate change, urbanization and other human actions. A first-of ...

A pet rat typically costs between $15 to $100, and they live for 2-4 years. ... Baby rats wean at four weeks at the earliest, so you should not be offered one younger than this.

More rodents are infesting cities as scientists say warmer temperatures mean more rat babies . Jan. 31, 2025 at 11:06 am Updated Jan. 31, 2025 at 1:21 pm . By . SETH BORENSTEIN.