Health & Safety

The world's second oldest profession? Tomb raiding. To combat the problem, American dealers and museums increasingly require a paper trail documenting a relic's ownership, but looters are just taking their business to Japan and Europe.

In archaeological sites throughout the world, antiquities are plundered for sale. U.S. agents says the looting is epidemic. One archaeologist working in Guatemala has launched a battle to save an ancient city from looters.

In archaeological sites throughout the world, antiquities are plundered for sale. U.S. agents says the looting is epidemic. One archaeologist working in Guatemala has launched a battle to save an ancient city from looters.

It's not easy to track down one of the fastest and rarest great cats in the world. But one biologist is working to attach radio collars to cheetahs living in remote areas of Iran. With fewer than 100 of the animals left, they are among the most imperiled great cats on Earth.

It's not easy to track down one of the fastest and rarest great cats in the world. But one biologist is working to attach radio collars to cheetahs living in remote areas of Iran. With fewer than 100 of the animals left, they are among the most imperiled great cats on Earth.

Snow leopards are among the world's most endangered big cats, with only several thousand left. In Mongolia's southern Gobi desert, the snow leopard is a sign of a healthy ecosytem. But poaching remains one of the area's more lucrative businesses.

Snow leopards are among the world's most endangered big cats, with only several thousand left. In Mongolia's southern Gobi desert, the snow leopard is a sign of a healthy ecosytem. But poaching remains one of the area's more lucrative businesses.

A settlement once home to hundreds has been unearthed near England's Stonehenge. Archaeologists think the builders of the huge stone circle may have lived in the village. It dates to the same time period.

A settlement once home to hundreds has been unearthed near England's Stonehenge. Archaeologists think the builders of the huge stone circle may have lived in the village. It dates to the same time period.

In literature, albatrosses represent weighty, inescapable burdens. But in real life, the huge seabirds use wind energy to cruise around the planet's oceans. Photographer Frans Lanting and writer Carl Safina report from one of the world's largest albatross colonies.