Dave Roos Archives

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The longest cave system winds for more than 400 miles, but others on the list haven’t even been fully explored yet.

From the Civil War to the rule of Ferdinand Marcos in the Philippines, find out how martial law has been enforced—and exploited.

From a buck‑toothed rodent to a shark that doesn’t reach puberty until age 150, find out what creatures have the make‑up for exceptional longevity.

A single giant sequoia could supply 500,000 board feet of lumber, a bonanza for profit‑hungry logging companies—or so it was thought.