Answer: hippos

AnswerCrossword Clue
HIPPOSRiver horses, for short
hipposhippopotamus
hipposHIPPO, a hippopotamus
HIPPOSZambezi River critters
HIPPOS"Fantasia" critters
HIPPOSThick-skinned river critters
HIPPOS"Hungry hungry" game creatures
HIPPOSZoo heavyweights, informally
HIPPOSSizable zoo animals
HIPPOSRiver horses
HIPPOSMembers of a bloat
HIPPOSZoo animals.
HIPPOS"Fantasia" ballerinas
HIPPOSHeavy herbivores
HIPPOS"Fantasia"
HIPPOSNile wallowers
HIPPOS"Fantasia" dancers
HIPPOS"Hungry Hungry" game critters
HIPPOSHuge herbivores
HIPPOSBeasts with six-pound teeth