Of Men and Animals Before the Flood—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. God purposed to destroy by a flood that powerful, long-lived race that had corrupted their ways before Him. He would not suffer them to live out the days of their natural life, which would be hundreds of years. It was only a few generations back when Adam had access to that tree which was to prolong life. After his disobedience he was not suffered to eat of the tree of life. Deprived of that tree, his life would gradually wear out.—Spiritual Gifts 3:64 (1864). (The Spirit of Prophecy 1:69) EGWSRGES 54.1
Of Men and Animals 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.—35G 75 (1864). (The Spirit of Prophecy 1:78) EGWSRGES 54.2
Of Plants—Christ never planted the seeds of death in the system. Satan planted these seeds when he tempted Adam to eat of the tree of knowledge which meant disobedience to God. Not one noxious plant was placed in the Lord’s great garden, but after Adam and Eve sinned, poisonous herbs sprang up. In the parable of the sower the question was asked the master, “Didst not thou sow good seed in thy field? from whence then hath it tares?” The master answered, “An enemy hath done this.” (Matthew 13:27, 28.) All tares are sown by the evil one. Every noxious herb is of his sowing, and by his ingenious methods of amalgamation he has corrupted the earth with tares.—Ms. 65, 1899. (Selected Messages 2:288.) EGWSRGES 54.3