The bison's large influence as a grazer, a major converter of plant to animal biomass, and a key link in nutrient recycling have been lost.

Feeding on plant matter assists in recycling organic matter and produces animal biomass.

Ants thrive in most ecosystems and may form 15-25% of the terrestrial animal biomass.

They can be found in great numbers on the deep seafloor, where they often make up the majority of the animal biomass.

It has been estimated that salamanders represent the largest class of animal biomass in the Appalachian forests.

Therefore, igapó forests support comparatively less life and the environment found within these areas tend to lack species diversity and animal biomass.

However, as a group, the small aquatic crustaceans called copepods may form the largest animal biomass on earth.

Most soft-bodied animals are small, but they do make up the majority of the animal biomass.

Some scientists say they form the largest animal biomass on earth.

Accordingly insects make up a very large part of the animal biomass in almost all non-marine, non-polar environments.