The journey would cover about 4,000 miles and hopefully offer some kind of superficial survey of how America, through its voices and landscapes and bewildering scale and beauty and elusiveness, is ...

A nearly complete 90-million-year-old dinosaur fossil from Patagonia, Alnashetri, reveals how alvarezsaurs evolved and shrank over time.

How ancient gene transfers, genomes, and pollination shaped moths and butterflies - and why their sudden decline is raising alarms.

By drawing water into an internal, muscular cavity and forcefully expelling it through a flexible, narrow tube, known as a ...