There may also have been successful, and not-so-successful experimentation with intelligent life forms on this planet long before the age of the dinosaurs. 

Doug Elwell expounds on the giants in the spring, 2003 edition of his Mysterious World web site.

Without attempting to challenge Christian dogma, Elwell describes a pre-Adamic race possibly created by the "fallen angels" before Adam. Argument for this is found in the fossil record. They included the bones of both Neanderthal and erectus humanoids. Elwell suggests that these were "proto humans" that appeared suddenly in the fossil record "almost as if they had been manufactured."

Elwell then theorizes that the various experiments with DNA manipulation of pre-existing animal species led to the homo sapiens, a race of humans that "possessed the specific characteristics that they desired."

The story next suggests that God, or the Hebrew YHWH, created Adam and Eve and placed them in the Garden of Eden to "supplant and eventually destroy" the abhorrent types of experimental humanoids that by this time were "running rampant all over His creation."

The "sin" was not the literal eating of fruit from a tree, but the failure by either Adam or Eve, or both of them to stay in the garden and remain faithful to each other. The story suggests that they or their children wandered and mixed that perfect DNA with the imperfect DNA, thus spoiling YHWA's plan.

Among the results of the alien experiments were giant humanoid figures who shared the Earth in those early times.

While there is little in the archaeological record, historical material records the discovery of bones of giants throughout the world. Following are excerpts from a few historical documents in Ohio:

"In 1829, when the hotel was built in Chesterville, a mound near-by was made to furnish the material for the brick. In digging it away, a large human skeleton was found, but no measurements were made. It is related that the jaw-bone was found to fit easily over that of a citizen of the village, who was remarkable for his large jaw. The local physicians examined the cranium and found it proportionately large, with more teeth than the white race of today: The skeleton was taken to Mansfield, and has been lost sight of entirely." (History of Morrow County and Ohio, 1880)

In digging the cellar of the house, nine human skeletons were found, and, like such specimens from other ancient mounds of the country, they showed that the Mound Builders were men of large stature. The skeletons were not found lying in such a manner as would indicate any arrangement of the bodies on the part of the entombers. In describing the tomb, Albert Harris said:

"It looked as if the bodies had been dumped into a ditch. Some of them were buried deeper than others, the lower one being about seven feet below the surface. When the skeletons were found."

Harris was twenty years of age yet he states that he could put one of the skulls over his head, and let it rest upon his shoulders, while wearing a fur cap at the same time. The large size of all the bones was remarked, and the teeth were described as "double all the way round." (The History of Medina County, 1881)

From Ashtabula, Ohio, came the following written description of an ancient four-acre burial ground unearthed at Conneuat in 1844:

"The mounds that were situated in the eastern part of what is now the village of Conneaut and the extensive burying ground near the Presbyterian Church, appear to have had no connection with the burying places of the Indians. They doubtless refer to a more remote period and are the relics of an extinct race, of whom the Indians had no knowledge.

"These mounds were of comparatively small size, and of the same general character of those that are widely scattered over the country. What is most remarkable concerning them is that among the quantity of human bones they contain, there are found specimens belonging to men of large stature, and who must have been nearly allied to a race of giants.

"Skulls were taken from these mounds, the cavities of which were of sufficient capacity to admit the head of an ordinary man, and jaw-bones that might be fitted on over the face with equal facility. The bones of the arms and lower limbs were of the same proportions, exhibiting ocular proof of the degeneracy of the human race since the period in which these men occupied the soil which we now inhabit." (The Conneuat Giants, Harvey Nettleton)

Similar records can be found in local libraries all over the American Midwest.

In his book, The Natural and Aboriginal History of Tennessee, author John Haywood describes "very large" bones in stone graves found in Williamson County, Tennessee, in 1821. In White County, Tennessee, an "ancient fortification" contained skeletons of gigantic stature averaging at least seven feet in length.

The Indiana News on Nov. 10, 1975, reported that a nine-foot, eight-inch long skeleton was removed from a mound near Brewersville, Indiana, in 1879.

Skeletons measuring eight and one-half feet and 10-feet in height and wrapped in a "gum-covered fabric" were uncovered in the Humboldt lake bed near Lovelock, Nevada, in 1931, according to the Review-Miner, a local newspaper published on June 19, 1931.

Obras Historicas, a treatise of Mexican history written by Fernando Lxtilxochiti, includes a story about how the Chichimec people of north central Mexico battled giants before they could occupy the land. The story also is told by Bernal Diaz del Castillo in his Cronica de la Nueva Espana.

Castillo wrote that their ancestors "had shared the land with men and women of very tall bodies and large bones, and since they were very wicked and ill mannered, slew them in combat, and what remained of them died out. In order that we might see how large these men were, they brought us one of their leg bones, which was rough and as long as the height of a normal-sized man. We were stunned upon seeing those bones and believed that there must have been giants in that country."

Greek mythology includes stories of the cyclops, a primordial race of giants with only a single eye in the middle of the forehead. Some stories suggest that Goliath, the Philistine giant slain by David was a cyclop and that the stone from David's slingshot was effective because it struck Goliath directly in the eye and thus penetrated his skull. Yet the Old Testament story does not support this.

Psychic and Prophet Aaron C. Donahue notes that the stories depicting evil giants with eyes in the middle of their foreheads were designed to ridicule the concept of second site through the awakening of the prophetic area of the brain. The stories were part of world religious dogma instituted to block normal human evolution.

Yet the stories of the giants are deeply engrained in world mythology. That some vague historical records exist that describe the discovery of human bones of giant stature help support these stories.

It is well known that there was a time during the early history of the Earth that massive creatures, the dinosaurs, once existed. This was a time when the climate, the rich vegetation, abundance of clean water and perhaps even a different gravitational pull encouraged giantism among both plants and animals. If humanoids appeared during that time, they also may have been very large.