Rare iguanas struggle for survival as Grand Cayman Island population grows.

• Author: Block, Ben
• Position: EYE ON EARTH - Rare blue iguana

When a team of volunteers with the Blue Iguana Recovery Program arrived to work at their Grand Cayman Island breeding center in May, they were shockede by what they found: someone had savagely attacked the program's endangered reptiles, eventually killing seven. Investigators have found no suspects.

The killings were a major blow to the recovery of the rare blue iguana, found only on this western Caribbean island. As a few as 10 of the animals existed in 2002. The breeding program has since increased the population...