A) Delphinus delphis B) Orcinus orca C) Inia geoffrensis D) Tursiops truncatus
A) Plankton B) Insects C) Fish and crustaceans D) Seaweed and algae
A) Yangtze River B) Nile River C) Amazon River Basin D) Mississippi River
A) Marine salinity B) Ocean currents C) Tides D) River water levels
A) Large dorsal fin B) Distinct black stripes C) Flexibility in their neck vertebrae D) Tail flukes like whales
A) Growls B) Roars C) Whistles and clicks D) Songs
A) Echolocation B) Long fins C) Camouflage D) Sharp eyesight
A) They form large pods B) They are completely social C) They are often solitary or in small groups D) They are always alone |