Spills of a thick, dark, sticky substance have been killing fish around the world recently, but the culprit isn't crude oil. Instead, it's molasses that's the deadly killer. And it's not the first.
Last week in Hawaii, 233,000 gallons of molasses spilled into the waters of Keehi Lagoon. Thousands of fish died after the dense molasses sank to the bottom of sea and suffocated the sea life.
In July, a spill of molasses into a Mexican river also killed thousands of fish (shown here). Although molasses isn't toxic, it smothers. The tons of rotting animals and molasses can then pose a health risk to people.