In a grazing food chain, energy and nutrients move from plants to the herbivores consuming them, and to the carnivores or omnivores preying upon the herbivores. In a detrital food chain ...

The world is interconnected, and what happens at lower levels eventually makes its way to the top. Scientists sound alarm about tough-to-detect force wreaking havoc on food chains: 'A comprehensive ...

A food chain shows how plants and animals get their energy. The arrow means 'is eaten by' and shows the movement of energy in the food chain. The initial source of energy for all food chains is ...