Ellen White addressed the topic of amalgamation in the context of the sins that led to the biblical flood. Here are the primary statements from her writings on this subject:
"But if there was one sin above another which called for the destruction of the race by the flood, it was the base crime of amalgamation of man and beast which defaced the image of God, and caused confusion everywhere." (
3SG 64.1)
She also wrote about the results of this practice, both before and after the flood:
"Every species of animal which God had created were preserved in the ark. The confused species which God did not create, which were the result of amalgamation, were destroyed by the flood. Since the flood there has been amalgamation of man and beast, as may be seen in the almost endless varieties of species of animals, and in certain races of men." (
3SG 75.2)