Some of the body's cells stay put for life, while others are free to roam. To move, these migratory cells rely on ...

For more than 150 years, scientists have debated whether Prototaxites—which stood roughly 24 feet tall and 3 feet wide—were an early lichen or fungus, like a “giant mushroom” ...

At marshy ponds from Mexico to Panama, this odd shorebird is common. Its long toes allow it to run about on lily pads and ...

Tulips may be most closely associated with the Netherlands, where they were imported from the Ottoman Empire in the 16th ...