Members of the perform many duties, from rescuing people and patrolling harbors to working with environmental groups to protect ocean animals

The Answer is Coast Guard.                                            

Coast Guard perform many duties, from rescuing people and patrolling harbors to working with environmental groups to protect ocean animals

Explanation:

The Coast Guard is a unique branch of the military responsible for an array of maritime duties, from ensuring safe and lawful commerce to performing rescue missions in severe conditions. It's official functions include the following:

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the jewellery thief was as cunning as a fox.

explanation:

"as cunning as a fox" is the simile, because it compares two things using the words "like" or "as" to do it.