Modifiers matching invertebrate:

• primitive,
• active,
• interesting,
• small,
• aquatic,
• harmful,
• benthic,
• big,
• herbivorous,
• cultured,
• colourful,
• marine,
• terrestrial,
• colonial,
• modular,
• collectible,
• adult,
• delicate,
• macroscopic,
• unusual,
• gelatinous,
• beneficial,
• large,
• cryptic,
• larger,
• crustacean,
• microscopic,
• soft,
• sessile,
• diverse,
• loving,
• visible,
• flightless,
• lier,
• mobile,
• edible,
• tiny,
• abundant,
• predatory,
• aggressive,
• light,
• attractive,
• simple,
• multicellular,
• smaller,
• erect,
• resistant,
• level,
• symbiotic,
• distant,
• planktonic,
• venomous,
• complex,
• tidal,
• rare,
• higher,
• semiaquatic,
• moving,
• charismatic,
• important,
• slow,
• coastal,
• macro,
• inconspicuous,
• vagrant,
• related,
• low,
• poisonous,
• sensitive,
• intertidal,
• lower,
• lacustrine,
• spineless,
• animal,
• pelagic,
• annoying,
• native,
• micro,
• common,
• carnivorous,
• immobile,
• sedentary,
• bodied,
• motile,
• valuable,
• developed,
• hardy,
• fascinating,
• omnivorous,
• familiar,
• basic,
• nocturnal,

Simple categories matching aggressive:

• animal,
• gas,
• medium,
• fish,
• shrub,
• socialization,
• offense,
• interaction,
• bird,
• sport,
• action,
• insect,
• predator,
• activity,
• condition,
• option,
• dog,
• plant,
• cancer,
• bass,
• environment,
• motive,
• chemical,
• offence,
• prey,
• therapy,
• ant,
• invertebrate,
• emotion,
• fluid,
• feeder,
• treatment,
• behavior,
• reagent,
• cleaners,
• pest,
• liquid,
• beast,
• lesion,
• native,
• illness,
• change,
• form,
• placental,
• care,
• component,
• track,
• interference,
• disease,
• intervention,
• act,
• monster,
• tetra,
• behaviour,
• game,
• measure,
• neoplasm,
• solvent,
• material,
• pet,
• encounter,
• grass,
• substance,
• agent,
• equine,
• malignancy,
• vegetable,
• creature,
• athletics,
• event,
• ion,
• acid,
• compound,
• lymphoma,
• outlet,
• enzyme,
• cichlid,
• crime,
• tumor,
• nature,
• cargo,
• tree,
• solution,
• conflict,