Here's why:
* Size Difference: Poodles, even the smallest toy poodles, are significantly larger than chihuahuas. The size discrepancy is too great for a chihuahua to carry and deliver a poodle puppy.
* Pelvic Anatomy: A chihuahua's pelvic opening is much smaller than a poodle's. This is crucial for the birthing process, and a chihuahua's pelvis wouldn't be able to accommodate a poodle puppy.
Important Note: Attempting to breed a chihuahua and a poodle would be extremely dangerous and unethical. It could result in serious injuries or even death for the chihuahua.
It's essential to remember that responsible breeding involves careful consideration of breed compatibility, the health and well-being of the animals, and ethical practices.