The field has always been losing energy despite its variations, so it cannot be more than 10,000 years old. We now have simple explanations for the field's origin, history, and present state. In this light, the earth's magnetic field is no longer a mystery; it is a testimony of God's handiwork.
There are about 20,000 different species of bees in the world. Bees live in colonies that contain the queen bee, the worker bee and the drone. The worker bee and the queen bee are both female, but only the queen bee can reproduce.
How many kinds of butterflies are there? There are approximately 20,000 species of butterflies in the world. About 725 species have occurred in North American north of Mexico, with about 575 of these occurring regularly in the lower 48 states of the United States, and with about 275 species occurring regularly in Canada.