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