Known from places like Dendera in Egypt are the hathor cat people and mostly known is a goddess called Bastet. Their temple in Dendera is known for a stone structure with a 1000 ton stable roof, looking like a helicopter deck in today times. Hathors are known to have a base on the 4D plane of planet Venus and experienced in sound works and healing. As 4D beings they were depicted as walking on two legs but with most cat attributes like shown at Bastet statues and carvings. Their 4D form was known to be around 10 feet high, so hybrids that are also shown on the wall carvings at Dendera are more in Humans shape and size.
Some many remind that very much statues and carvings from Egypt show double sized beings nearby humans, what show us that in ancient times 3D and 4D exist together on same ground and so the 4D beings are able to use their kind of technology to grow and build from today viewpoint incredible structures. Most based on technology that create light matter from thought forms that was shrinked and condensed in place to 3D. Ancient people have seen the Hathors as gods, especially Bastet and worshiped them, would you like to have contact to their ascendants? Or are you feared of disclosure by the result, apart that most people love and house cats.