Both the picture you posted Burgundia and the texas "chupacabra" looks to me like spliced animals.
First, the "chupacabra". Look at its nose, doesn't that look like a pigs snout? Could be the picture is lying a little, but it also looks like it has hooves, or "knuckles" that resemble that of a pig. I also notice that it doesn't have the muscular body a dog usually have, but yet again it resemble a small pig, with slightly longer legs than usual.
For the other picture, I second that it looks like a cross-breed of cat and dog. I don't see quite the resemblance to the chupacabra, as this animal seems larger and its eyes seems to sit lower on its head. The chupacabra seems to have its eyes "close" together, whereas the other animal has them quite widely apart. It's hard to tell from the picture, but it could look like the cat-dog has a long tail, which further could resemble a cat. Actually, the first animal that popped in my head was a cheetah.
Just a few thoughts on the pictures, feel free to elaborate or dispute my findings should the observations be off.
