Nearly, in both cases :-) 
print $doc->{species}{$key}{'physical-characteristics'}[0]{mass}[0]
# and 
print $doc->{species}{$key}{'physical-characteristics'}[0]{appearance}
+[0]

[download]
The square brackets indicate array refs so you need an element index (a number). So ['mass'] won't work.

In reply to Re^3: XML::Simple Multi-Layered by wfsp
in thread XML::Simple Multi-Layered by eide

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