This is just the way that they have been bred over generations. Humans have selected the dog's with the desired physical characteristics and bred those dog's to carry on the desired genes. Dachshunds are now being bred for looks, rather than purpose, which means that strange abnormalities like this can appear.
When they are a puppy yes, but as they get older the back legs will be longer than the front.
Yes they are 10% longer
yes
it is
it is
usually the back legs are longer in species like hyenas the front legs are longer!
Yes.
I think
Yes.
Most Dachshunds have eighteen toes, including the two dew claws on their front legs.
It walks or runs, just like a dog or cat walks or runs. Its front legs are slightly longer than its back legs.It walks or runs, just like a dog or cat walks or runs. Its front legs are slightly longer than its back legs.
To cross the road! Obviously (but also their back legs are longer than their front)