Top-Ranked Fine-Grained Categories of hydroid: =>see poetic categories

• benthic:invertebrate,
• sessile:invertebrate,
• small:critter,
• sessile:organism,
• sessile:prey,
• modular:organism,
• sessile:animal,
• small:animal,
• benthic:organism,
• benthic:animal,
• colonial:organism,
• tiny:creature,
• marine:organism,
• small:zooplankton,
• epilithic:animal,
• small:invertebrate,
• marine:invertebrate,
• small:organism,
• modular:invertebrate,
• sessile:fauna,
• sedentary:organism,
• erect:invertebrate,
• jellylike:creature,
• small:creature,
• simple:animal,
• sessile:creature,
• aquatic:animal,
• small:prey,
• modular:animal,
• sedentary:animal,
• invertebrate:animal,
• colonial:invertebrate,
• simple:organism,
• diverse:organism,
• colonial:animal,
• immobile:invertebrate,