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This 8,000-year-old discovery shows that there were humans in Israel two thousand years before the world was created, according to many Bible literalists!And this find is not alone in its antiquity: The city of Jericho’s foundation is millennia older, and very ancient remains of human culture dating tens of thousands of years ago have also been found in Israel.Seagrasses are found in shallow salty and brackish waters in many parts of the world, from the tropics to the Arctic Circle.Seagrasses are so-named because most species have long green, grass-like leaves.
Chloroplasts in their tissues use the sun's energy to convert carbon dioxide and water into sugar and oxygen for growth through the process of photosynthesis.
Seagrasses provide many important services to people as well, but many seagrasses meadows have been lost because of human activities.
Work is ongoing around the world to restore these important ecosystems.
Algae or "seaweeds" (left) differ from seagrasses (right) in several ways.
Algae on the seafloor have a holdfast and transport nutrients through the body by diffusion, while seagrasses are flowering vascular plants with roots and an internal transport system.