And he learns how Amazon tribes shrank human heads.

The reason he went to Acre was this: a murder by unclothed Indians has often been the first sign of a previously uncontacted Amazon tribe.

Where were you when the many Amazon tribes were scattered and destroyed?!

She is told that during one past night the island was invaded by an outside Amazon tribe called the Amazons of Bana-Mighdall.

Mr. Jenkins's first trip to South America, at age 18, led to a two-month stay with a disappearing Amazon tribe.

Like other Amazon tribes, the Karitianas are likely descended from groups that migrated to South America between 70 and 14,000 years ago.

The legislation caused a backlash among various Amazon tribes, who blocked roads in the area in protest.

Varia, now leading the multiple Amazon tribes that have gathered from around the known world, captures Eve in order to make her stand trial.

However, she and her Amazon tribe see men as a "necessary evil" and capture them for potential husbands.

And the themes range even farther, from the extinction of Amazon tribes to a modern theory that love conquers cancer.