Scourge Of Early Mexico: Spain, Or Rats?

Mexicans have long been taught to blame diseases brought by the Spaniards for wiping out most of their Indian ancestors. But recent research suggests things may not be that simple.

While the initial big die-offs are still blamed on the Conquistadors who started arriving in 1519, even more virulent epidemics in 1545 and 1576 may have been caused by a native blood-hemorrhaging fever spread by rats, Mexican researchers say.

The idea has sparked heated debate in Mexican academic circles.

Feds Collect Giant Rats in Florida

As the rising sun danced across Florida's coastal waters, government workers in shorts and T-shirts knelt in a grassy island field and plucked wriggling rats from traps laid the night before. These weren't just any rats. They were 3-pound, 35-inch-long African behemoths. They squirmed as the workers, wearing protective gloves, removed green radio collars that had been tracking the rodents' movements.

All 18 of the animals were carted away for research.