How is this Possible??

You need to go to the first picture and description:

http://www.dogbreedinfo.com/mixbreed/muttphotos34.htm

Poor dogs!!

omg thats just wrong those poor dogs

Its possible if the rottie was the dam. I was pleased to see they have said they do not recommend the mix of the two breeds and have stated a few of the problems the dogs have occured.

Breeds such as Bassets, Corgis and Dachshunds etc. have a gene for Dwarfism, which gives the short legs on an otherwise normal sized body.

I always thought it was a recessive gene (carried hidden by both parents) as I once met a pedigree chocolate Labrador which was clearly a dwarf - normal head & body, stumpy legs - and also a Border Collie the same (nicknamed the 'Sawn-Off Sheepdog' ..lol).

I am wondering if there may be more than one gene for dwarfism though, as these crosses seem to imply that one dwarfed parent is producing dwarfed offspring when bred to a Normal partner.

So if you were wondering "How is this possible" from a genetics viewpoint, there's your answer