How many babies do a pair of rabbits usually have in one year?

It's impossible to say exactly how many babies a pair of rabbits will have in a year. Here's why:

* Rapid Reproduction: Rabbits are known for their rapid breeding rate. A female rabbit can become pregnant as soon as a month after birth and can have multiple litters per year.

* Litter Size: The number of babies (kittens) in each litter varies, typically ranging from 4 to 12.

* Environmental Factors: Factors like food availability, climate, and predators can significantly influence the number of litters a female rabbit produces.

The Fibonacci Sequence: The concept of rabbit reproduction is often illustrated using the Fibonacci sequence. This sequence starts with 0 and 1, and each subsequent number is the sum of the previous two (0, 1, 1, 2, 3, 5, 8, 13...). While this sequence provides a theoretical model, it doesn't account for the real-world complexities of rabbit breeding.

In conclusion: The number of babies a pair of rabbits can have in a year is highly variable and depends on many factors.