It therefore seems possible that at least one of the types of creatures called a goat-sucker could in fact be a griffin like mutation. Other witnesses report a far different creature. These creatures, if real, are possibly not of terrestrial origin. Rumors abound in the UFO community of hybrid experimentation and these creatures appear to be some truly bazaar hybrid or completely extra-terrestrial animal. They are not described as having a dexterous hand, nor as using any form of technology, nor do they operate in an orderly fashion.
Humans have an anthropoid jaw, that is a mouth which opens and closes vertically.
Some of the Chupacabras have a similar arrangement, however some are reported to have a mouth more akin to terrestrial arthropods. Their jaws open and close horizontally like terrestrial insects, spiders, and crustaceans. The spiders have right and left fangs which mesh and supplement the mouth parts. The Chupacabra with the insect like head would be far to large to be mobile if it were a true insect with an exoskeleton. However one might speculate that orders of animals unknown among earth species might be very insect like, but with partial or completely internalized skeletons, and other characteristics associated with the higher animals.