All during the month, thousands and thousands of north Texas' hummingbirds (including the ones born this year) are trying to pack on extra weight and stockpile extra energy for the long, draining migration flight to Central America. They know instinctively that they'll need all their energy for the trip. So you'll see them crowding around nectar feeders and blooming flowers.
The accidental release of radiation at the Japanese Fukushima nuclear plants in 2011 has damaged the genetic makeup of local wildlife. Butterflies are the first to be studied (due to their short life cycle) but others may come later.
Researchers from the University of Ryukyus, as reported in "The Week" magazine, found that 12 percent of the pale grass blue butterfly larvae collected from Fukushima developed mutations as adults. Mutations include damaged wings, eyes, legs etc. Then, 18 percent of their offspring also had mutations, even though they had never been exposed to radiation themselves.