Evolution is always purposeful,
never accidental. Its course is directed by the combined teamwork of
the Master Physical Controllers, who manage the mechanical, non-teachable
types of life; the Adjutant Mind Spirits, who activate and regulate
teachable life; and the Life Carriers, who plant life and oversee it
until the appearance of human will.
Life Carriers perform on three
levels: the physical, the quasi-morontial, and the semi-spiritual. When
Life Carriers have chosen the sites for life implantation, they are
modified to function on the physical level. Having started life, Life
Carriers are returned to a morontial phase from which they can manipulate
and maneuver evolving life. When will creatures appear, the Life Carriers
cease their attempts to steer the course of organic evolution.
Life on Urantia was planted
in three warm-water locations. All plant and animal life evolved from
the slime of the sea beds. Bacteria and fungi were the most primitive
forms of plant life. Next came transition organisms such as sponges,
then single-celled ameba and other protozoans-the first true animals.
These were followed by stone lilies, sea urchins, sea cucumbers, centipedes,
insects, spiders, crustaceans, earthworms, leeches, and mollusks. Further
mutations produced fish, frogs, reptiles, and placental mammals. Within
this latter group arose the ancestral lemur from which sprang the dawn
mammals, then mid-mammals, and lastly the Primates, who gave origin
to the first human beings.
Life Carriers take advantage
of environmental conditions to guide evolving life in favorable directions.
Having selected southeast Asia as the best site for early man to evolve,
and knowing that good prehuman stocks were developing in the central
life group, the Life Carriers led man's North American lemur ancestors
across the Bering land bridge and into that central region where the
two superior stocks could continue to evolve.
The appearance of man during
the ice ages was intentional. The rigors of a cold climate produce
hardiness in humans. If man's ancestor strains had perished, evolution
would have been retarded but not prevented; Life Carriers were simultaneously
fostering over a thousand mutating strains of potentially pre-human
life. Even the loss of Andon and Fonta would only have delayed the eventual
appearance of human beings.
Urantia is an experimental
planet, where Life Carriers have the opportunity to modify life forms
in the attempt to improve them. Evidence that life was intelligently
planned is demonstrated by the way an injured cell throws off chemical
substances to alert neighboring cells to create replacement cells. This
healing method was chosen by the Life Carriers after half a million
laboratory experiments. The appearance of the Andonic will creatures
prior to the evolution of the six Sangik races was a planned experiment.
Another was the simultaneous appearance of the six colored races in
one family.
A major advance in the evolution
of higher mammals was the development of the ability of iron to double
as oxygen carrier and carbon dioxide remover. The fact that evolution
is still in progress is illustrated by the evolution of teeth in higher
mammals-while man's remote ancestors had thirty-six teeth, humans are
now gravitating toward twenty-eight.
Experiments in plant evolution
include the development of chlorophyll-making ability and the evolution
of the spore into a complex seed. A great disappointment for the Life
Carriers on Urantia was the reversion of certain plant forms to parasitic
bacteria, which later caused diseases in higher mammals.