We do believe Muhammad(saws) was carried to a heaven by a creature of some type. It was something Muhammad(saws) had never seen before and never saw again. We do not know what it was except it was sent by God(swt). No where did Muhammad(saws) call it a winged horse.
Dog Memory Span. To be able to make a somewhat complete analysis about the span of dog memory, it is important to differentiate between associative memory and real memory. It is said that if a dog does not have some sort of exterior stimulus that he is not able to think about or remember parks or places he has been in before. But as soon as dog hears his owner's voice, smells him or perceives his presence at a distance, his associative memory activates or comes to life.
The average dog life span is not only determined by breed, but several other factors can contribute to your dog's life expectancy. 12.8 years is the average life span of the average American or European dog. This number is a dramatic leap from the expected life in the past. In a large part, this is due to better medical care and diet we have now for our own dogs. Typically, the more stress a dog has in his life, the shorter his expectancy becomes.