Our world is filled with a tremendous variety of life. And its origin is no mystery. The Bible says God created every kind of living thing on Days Three, Five, and Six of Creation Week. Ten times in Genesis 1 the phrase “according to its [or their] kind” is used in connection with different types of plants and animals. The word kind is used again in Genesis 6 when God instructed Noah to take two of every kind of land animal onto the Ark; and in Genesis 8 God commanded these animals to reproduce after the Flood.
What does the word kind mean?
Since two of each kind of land animal (and seven of some) were brought aboard the Ark for the purpose of preserving their offspring upon the earth (Genesis 7:3), it seems clear that a “kind” represents the basic reproductive boundary of an organism. That is, the offspring of an organism is always the same kind as its parents, even though it may display considerable variation.
Dogs, for example, exhibit tremendous variety. Yet diverse breeds of dogs can produce offspring with each other—indicating that all dogs are of the same kind. Dogs will not interbreed with cats, however, since they are a different kind. Modern breeding research therefore confirms the biblical concept of animal and plant kinds.
[Read the rest of the article at Answers in Genesis.]