One of two North American river otters who escaped from a Wisconsin zoo last month has returned home safe and sound.

But new research suggests that millions of years ago, iguanas pulled off the 5,000 mile (8,000 kilometer) odyssey on a raft of floating vegetation — masses of uprooted trees and small plants.

Researchers have long wondered how iguanas got to Fiji, a collection of remote islands in the South Pacific. Most modern-day iguanas live ... iguanas pulled off the 5,000 mile (8,000 kilometer) ...

NEW YORK — Researchers have long wondered how iguanas got to Fiji, a collection of remote islands in the South Pacific. Most modern-day iguanas live in the Americas — thousands of miles away. They ...

Researchers have long wondered how iguanas got to Fiji, a collection of remote islands in the South Pacific ... pulled off the 5,000-mile odyssey on a raft of floating vegetation — masses ...