All land plants have evolved from aquatic ancestors. Species from nearly one hundred flowering plant families, along with some ferns, mosses, and liver-worts, have reinvaded the water. Many land plants can tolerate flooding for some time. A good...

Submerged aquatic vegetation consists of a taxonomically diverse group of plants that lives entirely beneath the water surface. This diverse group of aquatic plants includes species of angiosperm vascular plants, mosses, and liverworts, and...

A simple definition of an aquatic weed is a plant that grows (usually too densely) in an area such that it hinders the usefulness or enjoyment of that area. Some common examples of aquatic plants that can become weeds are the water milfoils, ribbon...

Aquatic plants — also called hydrophytic plants or hydrophytes — are plants that have adapted to living in or on aquatic environments. Because living on or under the water surface requires numerous special adaptations, aquatic plants can...

Chromium poisoning among leather tanners has long been known. The workers have been found to suffer from ulcers, allergic dermatitis, lung cancer, and liver necrosis due to prolonged contact with chromium salts. One of the highly catastrophic incidences of lung cancer as a result...

Eighty-seven species belonging to 59 genera and 33 plant families identified in the study area are presented. The three families with the most species represented were Labiatae (nine aquatic species), Compositae (seven species), and Salicaceae (seven species). The genera most represented were Mentha (six...

Not far from Don's Body Shop and the Alcove Bar is a peaceful, green world that ducks, bald eagles and shorebirds call home.The Upper Mississippi National Wildlife and Fish Refuge is also a retreat for bird-watchers, canoeists and summertime boaters.But Mother Nature giveth — and...

The United Nations is stepping up its campaign to conserve the world's genetic resources so crops and animals can adapt to global warming and other challenges, focusing on fish for the first time since fish are increasingly being bred to meet the world's food needs.Fish...