Category Nuances for null:

• dumb,
• large,
• marine,
• actual,
• beautiful,
• visible,
• trophic,
• social,
• indigenous,
• charismatic,
• bigger,
• modern,
• threatened,
• larger,
• aquatic,
• exotic,
• migratory,
• cuddly,
• sentient,
• wonderful,
• canadian,
• nonhuman,
• higher,
• familiar,
• new,
• pelagic,
• dangerous,
• natural,
• individual,
• foreign,
• wild,
• regular,
• hoofed,
• multicellular,
• arctic,
• amphibious,
• big,
• popular,
• quadruped,
• additional,
• conscious,
• motile,
• frightening,
• set,
• antarctic,
• coastal,
• real,
• floating,
• extant,
• dramatic,
• major,
• undersea,
• smart,
• wet,
• dead,
• underwater,
• piscivorous,
• carnivorous,
• polar,
• complex,
• amazing,
• huge,
• small,
• moving,
• stuffed,
• extinct,
• related,
• vulnerable,
• whole,
• animate,
• spectacular,
• potential,
• ferocious,
• terrestrial,
• diverse,
• top,
• oceanic,
• valuable,
• mammalian,
• final,
• random,
• gentle,
• hungry,
• photogenic,
• harmful,
• docile,
• intelligent,
• native,
• level,
• heavy,
• microscopic,
• macro,
• bodied,
• mobile,
• predatory,
• attractive,
• majestic,

Simple Categories for null:

• animal,
• fauna,
• mammal,
• tetrapod,
• object,
• cetacean,
• user,
• predator,
• plankton,
• denizen,
• creature,
• thing,
• prey,
• native,
• organism,
• host,
• carnivore,
• brute,
• being,
• bird,
• ungulate,
• vertebrate,
• beast,