laser skin On the other side

On the other side of this tunnel is a rock formation that looks like a large crystal flower. Such formations are called anthodites. Mark Maslyn says cavers in the past would take anthodites home with them. He says he always follows  this advice for cavers: "Take nothing but pictures, leave nothing but footprints, kill nothing but time."

This is good advice to make sure that future generations will also enjoy visiting caves and their many natural wonders.

BARBARA KLEIN: Many archeologists believe that early humans came to North America by    fmdw110914 addjgvldo crossing the Bering Strait about fifteen to eighteen thousand years ago. They moved from place to place, hunting and gathering food. Starting about two thousand years ago, some tribes settled in large, permanent villages. An archeology project in western Canada aims to find out why this change took place.

Archeologists from Washington State University and the University of  qweig0914 British Colombia are studying  an early settlement of the Coast Salish people. Colin Grier is head of a ten-member team studying what he says is one of this group's best-protected villages.

STEVE EMBER: The dig is taking place in Dionisio Point Provincial  Park on Galiano Island in British Colombia.

COLIN GRIER: "Why did the transformation happen when it happened? That's probably the most difficult question to answer. When do people start to settle down?"

STEVE EMBER: Mister Grier's team wants to understand what caused a tribe that moved from place to place to settle and develop a more complex society.

In many cultures, the rise of village life is linked with the start of farming.

COLIN GRIER: "But of course, here no one invented agriculture." 私人侦探 私人侦探 私人侦探

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