Other Invertebrates: Sea"Mucus" Blobs Pose Threat
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© 2009 National Geographic; Video Courtesy Piero Mescalchin
Sea"Mucus" Blobs Pose Threat
October 8, 2009—Giant, jelly-like sheets of dead and living organic matter, known as marine mucilages, are spreading throughout the Mediterranean. The blobs may smother marine life and carry diseases dangerous to humans.