For the purposes of your example, the first two steps can be condensed into one. Rather than create a hash and then create a reference to it:

%animals = ('donald'=>'duck', 'mickey'=>'mouse', 'cheshire'=>'cat');
$fer = \%animals;
[download]

Create a reference to an anonymous hash like so:

$fer = {'donald'=>'duck', 'mickey'=>'mouse', 'cheshire'=>'cat'};
[download]

This will accomplish the same thing.
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