The simians are anthropodic monkeys and like all monkeys the result from sex relation between human and animals million of years ago.The highest class of the simians and monkeys are now incarned from the fifth class monads or essences of the fifth class.Consider,oh Lanoo,the essence takes what is there and what is confirm with their condition of development or desire.That is why the fifth class monade are those who not incarned in the third rootrace,but in the "product"between human and animal,also in the anchestors of the monkeys.
That means that they inherit such degenerated vehicles,which even a mnasaputra in sot able to change.
But why they waited so long?One explantaition for their hesitation could be,that they was so backwards in their evolution that this underevelopted bodies came just right to them(Prof.Dr.v.Purucker).
So also there is a guru in each so called worse one.But the destiny of the monkeys and apeman has also another aspect,but this one i can not discuss here.