Penn Dixie Fossil Park reopening on April 30
Penn Dixie is scheduled to reopen on Saturday, April 30 for the 2022 season.
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Penn Dixie is scheduled to reopen on Saturday, April 30 for the 2022 season.
RAGBRAI XLIX's route will take riders past a famed grotto, the National Hobo Museum and a fossil park on their journey from Sergeant Bluff to Lansing.
Geologists have long assumed that the evolution of land plants enabled rivers to form snakelike meanders, but a review of recent research overturns that classic theory – and it calls for a reinterpretation of the rock record.
Significant bite marks found on prehistoric sharks prove that the creatures attacked each other. Four different discoveries of now-extinct shark vertebrae revealed numerous bite marks with even teeth embedded in one of them. It is known that sharks can prey on each other – even fetuses occasionally eat their siblings inside of the womb. This... Read more »
Milestones in evolution and history