(Credit: Ondrej Prosicky/shutterstock)
Native Americans may have kept a breeding colony of scarlet macaws in the American Southwest starting more than 1,000 years ago, a new study finds. The birds were raised for their colorful plumage hundreds of miles from their native jungles.
With their brilliant red, yellow and blue plumes, scarlet macaws are likely the best-known parrots of the New World. These birds normally range from South America to eastern coastal Mexico and Guatemala.
Yet, over the ...read more
NASA astronaut Harrison Schmidt shaves during the Apollo 17 mission. (Credit: NASA)
On May 5, 1961, Alan Shepard became the first American in space when he piloted the Mercury capsule Freedom 7. His sub-orbital journey lasted 15 minutes. Like most children who grew up in the early era of space flight, I remember this moment well.
The flight was extra special for me because my dad, Arthur L. Levine, worked for NASA. As a human resources administrator, he recruited John Glenn, who in 1962 became ...read more
Scientists find that parasites dramatically alter how much methane a sheep emits.
It’s estimated that 40% of greenhouse gas emissions come from agriculture, and a substantial portion of that is directly ’emitted’ by livestock. And just last year, climate scientists reported that we’ve actually been underestimating the extent to which the combined belches and flatulence of farmed animals contributes to climate change by 11%. Unsurprisingly, there& ...read more