Insects are a class of invertebrates with a chitinous exoskeleton, a three-part body, tree pairs of jointed legs, compound eyes, and one pair of antennae. They are the most diverse group of animals on Earth, including more than a million described species and representing more than half of all known living organisms, and will likely be an integral part of off-world ecosystems as well.
|Aquatic Micro-Organisms||Archaea · Cyanobacteria · Diatom · Plankton|
|Algae||Stonewort · Green Algae · Kelp · Seaweed|
|Aquatic Animals||Coral · Crustacean · Fish · Mammal (Aquatic) · Reptile (Aquatic)|
|Terrestrial Micro-Organisms||Actinobacteria · Lichen · Fungus · Protozoa|
|Plants||Grass · Moss · Shrub · Tree|
|Terrestrial Animals||Amphibian · Bird · Insect · Mammal (Terrestrial) · Reptile (Terrestrial)|