Here's an ominous story about a 59 percent decline in the number of Monarch butterflies in their Mexican wintering grounds. There could also be a connection to GMO crops and Monsanto.
One of the reasons cited in this Associated Press story is the killing off of the plant Monarchs depend on for food during much of their migration through North America - the milkweed. Experts theorize that milkweed is dying out because of pesticide use.
One of the primary pesticides doing the damage is believed to be Monsanto's Roundup.
Monsanto's genetically modified corn and soybeans are so-called "Roundup Ready," which means those plants are able to withstand the effects of the pesticide. But every other "weed" around those tens of thousands of acres of GMO crops - we're talking things like milkweed - are killed.
If it's true, that's quite a chain of unintended consequences: Monsanto sells GMO seeds to farmers, and then sells them Roundup to kill the weeds, which also kills off the milkweed on which Monarchs depend, and Monarch populations plunge.