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Full-Text Articles in Poultry or Avian Science
The Age Of Birds In Nebraska, Paul A. Johnsgard
The Age Of Birds In Nebraska, Paul A. Johnsgard
Nebraska Bird Review
Let each mile of highway I-80 represent a million years. That way, 1/2 mile represents 500,000 years, 1/10 mile = 100,000 years, 1/100 mile (52 feet) = 10,000 years; 1/1000 mile (5.2 feet) = 1,000 years, and 6 inches = 100 years. A decade (ten years) equals about a half-inch. It is 450 miles from the 60th St. on-ramp to I-80 in Omaha to the westernmost exit at the Wyoming border. These 450 million years encompass most of the time that evidence of life has been found on earth, but the earth itself is more than four billion years old, …
Two Poems, William Kloefkorn