In deep-water aquatic ecosystems, with their low standing biomass, rapid turnover of organisms, and high rate of harvest, the grazing food chain may be dominant. As a diagram tool, food web has ...

faster predators higher on the food chain. Those changes triggered some relatively quick evolutionary impacts, such as fairly drastic differences in some aquatic reptiles' skull shapes and sizes.

Zambia and Kyrgyzstan have been picked to benefit from a programme spearheaded by the United Nations' Food and Agriculture ...

The heavy metal, which bioaccumulates at all levels of the food chain, is toxic to plants and animals ... Elevated levels of cadmium have been identified in all three of those aquatic animals. Cadmium ...