Why do animals need an environmental space more than the zoos

Researchers believe these animals suffer because they're too confined to carry out their normal routines. Behavioral biologists Georgia Mason and Ros Clubb of the University of Oxford, U.K, reasoned that how well animals adapt to zoo life might vary with how they live in the wild.

equal distribution i think.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.