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雅思填空题9

2020-01-09

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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      

 

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