Modifiers matching whale:

• larger,
• toothed,
• large,
• small,
• advanced,
• smaller,
• social,
• arctic,

Simple categories matching arctic:

• critter,
• mammal,
• ruminant,
• animal,
• creature,
• system,
• whale,
• food,
• bird,
• herbivore,
• predator,
• game,
• activity,
• fauna,
• species,
• carnivore,