... had no need for qualitative or quantitative defenses. There were no predators on the islands to control them, so they quickly multiplied, established feral populations and denuded huge areas of forest. Cattle were finally hunted and brought under control in the 1920s and 1930s after over one hundred years of munching native plants into oblivion (Wilcove 1999). Goats still remain a serious problem ... Royte 1995). They uproot many rare plant species when searching for worms and grubs in the soil, including small trees. This opens up the canopy and allows light to penetrate previously shad...

• Word Count: 3046
• Approx Pages: 12
• Has Bibliography
• Grade Level: Undergraduate

... is not inconceivable that other groups of ingenious and perhaps restless plainsmen reached the forest-covered shores of the Atlantic. It was this primitive milling equipment developed by the archaic people that provided the prototypes of the metate and mano still widely used in rural households of Mexico to grind cultivated corn. The shift in the eating habits of the early settlers has much to do with the disappearance of the mammoth and many other North American ... light upon the builders. Some communities had populations numbering in tens of thousands, carried on intensive agricultur...

• Word Count: 3974
• Approx Pages: 16
• Grade Level: Undergraduate

... even looks like there is some smoke coming from the forest itself, making the mountains in the distance hard to discern. All this smoke gathers in the sky air and gives it some sort of dirty, murky green tint. The hillside in the foreground, which fills almost the whole bottom half of the painting, is disfigured by dozens of tree remains: an old forest that must have been felled partly in order to ... reached by this pre-Lady Liberty figure and her coat of light. They runaway from this extraordinary vision: the Star is too much for them. She guides the settlers, the wagons and the train...

• Word Count: 3252
• Approx Pages: 13
• Grade Level: Undergraduate