* Species: Some mammals are known for having large litters (like rabbits), while others have just one or two offspring (like elephants).
* Size: Smaller mammals tend to have more offspring at once, while larger mammals often have fewer, but larger, babies.
* Environment: The environment plays a role. In harsh conditions, mammals might have more offspring to ensure at least some survive.
* Individual Factors: Even within a species, individual mammals can have different litter sizes based on factors like age, health, and resources available.
Here are some examples:
* Mouse: Can have 5-10 pups in a litter.
* Rabbit: Can have 4-12 kits in a litter.
* Elephant: Usually has 1 calf at a time.
* Human: Typically has 1-3 babies at a time (multiples are possible).
It's important to remember that the number of offspring a mammal can have is influenced by a complex combination of factors.