仔虫[shichuu] larva
仔馬[kouma] small horse
胎仔[taiji] fetus
同腹仔[doufukushi] litter
蛤仔[asari] Manila clam (Ruditapes philippinarum)

仔犬[koinu] puppy
仔牛[koushi] calf
仔猫[koneko] kitten
仔羊[kohitsuji] lamb
仔細[shisai] reasons

ランブル鞭毛虫[ranburubenmouchuu] giardia (flagellate protozoan)
ランブル鞭毛虫症[ranburubenmouchuushou] giardiasis
いも虫[imomushi] hornworm (caterpillar of a hawk moth)
益虫[ekichuu] useful insect
円虫類[enchuurui] round worms

夏虫[natsumushi] summer insect
蛔虫[kaichuu] roundworm (Ascaris lumbricoides)
害虫[gaichuu] harmful insect
鈎虫[kouchuu] hookworm
寄生虫[kiseichuu] parasite