A) Manatee
B) Dolphin
C) Seal
D) Orca

A) Polar regions
B) Coastal waters
C) Deep sea
D) Freshwater lakes

A) Sirenia
B) Elasmobranchs
C) Pinnipeds
D) Cetacea

A) Bioluminescence
B) Vocalizations
C) Sign language
D) Holograms

A) Manatus africanus
B) Trichechus latirostris
C) Trichechus manatus
D) Manatus mexicanus

A) 8
B) 6
C) 2
D) 4

A) By hunting small fish
B) From seaweed
C) From consuming rocks
D) From their mother's milk

A) Pollution
B) Climate change
C) Habitat loss
D) Illegal hunting