雅思填空题9
No.9
Complete the notes below.
Write NO MORE THAN TWO WORDS for each answer.
Mass Strandings of Whales and Dolphins
Mass strandings: situations where groups of whales, dolphins, etc. swim onto the beach and die
Common in areas where the 1 Several other theories:
Parasites
e.g. some parasites can affect marine animals' 2 which they depend
on for navigation
Toxins
Poisons from 3
whales
e.g. Cape Cod(1988)-whales were killed by saxitoxin
Accidental Strandings
Animals may follow prey ashore, e.g. Thurston(1995)
Unlikely because the majority of animals were not 4 stranded
Human Activity
5 .
The Bahamas (2000) stranding was unusual because the whales
· were all 6
· were not in a 7
Group Behaviour
· More strandings in the most 8
· 1994 dolphin stranding - only the 9
Further Reading
Marine Mammals Ashore (Connor) - gives information about stranding 10