A) Enhydra lutris B) Callorhinus ursinus C) Phoca vitulina D) Ursus maritimus
A) Plankton B) Clams and mussels C) Fish and squid D) Seaweed and algae
A) Least Concern B) Vulnerable C) Critically Endangered D) Endangered
A) Overfishing and climate change B) Illegal hunting and disease C) Natural disasters and invasive species D) Habitat destruction and pollution
A) Through vocalizations and body postures B) By using bioluminescent signals C) By releasing pheromones into the water D) Through complex dances and patterns
A) Disease B) Predation by other marine mammals C) Starvation D) Climate change
A) By relying on their buoyancy B) By using inflatable air sacs C) With their streamlined bodies and powerful flippers D) With the help of a symbiotic relationship with fish
A) By panting heavily B) Through a thick layer of blubber C) By migrating to warmer waters D) By huddling together for warmth |