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 ...

The bones of an unlucky ancient sea cow has revealed more about the food chain during the Miocene epoch, around 23 million to 11.6 million years ago. Skeleton analysis indicates the creature was ...

Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the ...

Actually, it's more like eat and be eaten for most organisms. While plants and some bacteria can make their own food, other organisms must eat living things to survive. This makes them predators.