A) Delphinus delphis B) Orcaella brevirostris C) Grampus griseus D) Tursiops truncatus
A) Through visual signals B) Clicks and whistles C) By echolocation only D) Using body language only
A) Least Concern B) Vulnerable C) Critically Endangered D) Endangered
A) Shallow freshwater and brackish waters. B) Deep ocean waters. C) Cold Arctic waters. D) High salinity waters.
A) Plankton B) Sharks C) Fish and crustaceans D) Seaweeds
A) Increased fishing quotas. B) Establishing protected areas. C) Reducing marine traffic. D) Banning all types of fishing.
A) They jump high out of the water. B) They often exhibit a unique rolling motion. C) They stay submerged for long periods. D) They glide on the surface.
A) Their large dorsal fin. B) Their strong jump ability. C) Their size and weight. D) Their rounded forehead and lack of beak. |