It looks likely that we go through a period of snow late Friday night across most northern communities before flopping over ...

Twin tails are seen emerging from the nucleus. A dust trail made up of heavier dust particles that are lit by reflected sunlight makes up the upper stream of tails. The lower stream is composed of ...

heavier forelimbs. Archaeopteryx's tail was more flexible but much longer than the short tailbones found in birds today. Because they evolved longer forelimbs than their early ancestors had had ...