Sea grapes leave trail of evolutionary clues
Monday, November 24, 2008 - 19:35
in Biology & Nature
Single-cell organisms are found rolling along the ocean floor, leaving animal-like tracks that researchers had thought could be made only by complex creatures. Biologists exploring the ocean floor for new sea creatures have stumbled upon one of the largest known single-celled creatures, a bland, grape-sized distant cousin of the amoeba that may solve a thorny evolutionary question that has puzzled researchers for decades.