What to Do If Your Hamster Has Babies

Every so often I hear from someone who ended up with a surprise litter of hamster pups, usually due to getting an already pregnant female from a pet store. So what should you do if you find your hamster has surprised you with a litter of pups? The most important thing is not to unduly disturb the new mom, as discussed in my answer to "My Hamster Had Babies! What Should I Do?"
Suggested Reading

• Hamster Care
• Sexing Hamsters
• Hamster Breeding Data