World’s Longest Underwater River Discovered in Mexico, Divers Say

Publication: National Geographic News   Date: March 5, 2007   View Article

Divers exploring a maze of underwater caves on Mexico’s Yucat√°n Peninsula have identified what may be the longest underground river in the world.

The waterway twists and turns for 95 miles (153 kilometers) through the region’s limestone caverns, said British diver Stephen Bogaerts, who made the discovery with German colleague Robbie Schmittner.

Longest Animal Migration Measured, Bird Flies 40,000 Miles a Year

Publication: National Geographic News   Date: August 8, 2006   View Article

Sooty shearwaters migrate nearly 40,000 miles (64,000 kilometers) a year, flying from New Zealand to the North Pacific Ocean every summer in search of food, according to a new study.

The extensive summer trek is the longest animal migration ever recorded electronically.

Great White Breaks Distance, Speed Records for Sharks

Publication: National Geographic News   Date: October 6, 2005   View Article

A female great white shark has completed the first documented round-trip ocean crossing by a shark, swimming farther than any other known shark, according to a new study.

Nicole, as the shark is being called, traveled from Africa to Australia and back-a total of 12,400 miles (more than 20,000 kilometers)-in nine months. The feat also set a second record: fastest return migration of any
known marine animal.

© 2008-2010 Collected Writings By John Roach