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

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

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

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

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

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

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

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