Answer:

PORPOISE

Answer	Crossword Clue
PORPOISE	Aquatic mammal
PORPOISE	Mammal whose name derives from the Latin words for "pig" and "fish"
PORPOISE	Certain cetacean

PORPOISE	Literally, "hog fish"
PORPOISE	Aquarium attraction
PORPOISE	Dolphin kin
PORPOISE	Sea mammal.
PORPOISE	Cetacean.
PORPOISE	Intelligent mammal.
PORPOISE	Aquarium performer
PORPOISE	Navy trainee

PORPOISE	Victim of a drift net
PORPOISE	Whale's kin
PORPOISE	Playful sea creature
PORPOISE	Relative of a dolphin