checked
o.h. krill was such an one.
the knowledge e.b.e.1 imparted to it's captors/hosts was/is invaluable.
the fact that the greys are just interstellar mercs hired by the reptilians out of betelgeuse to "soften us up" w/first contact [etc] while the reps made their way here (slower) in a hollowed asteroid worldship for typical conquer and plunder purposes.
iirc… the o.g. d.o.a. was between 2o2o and 2o28.
sadly, the original datasets are lost.