I think it is because @_ is magic 
my @foo = 1 .. 2;
sub modit { $_[0] .= ' magic ' }
print modit(@foo),"\n";
print "@foo\n";
__END__
1 magic
1 magic  2

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In reply to Re: Too lazy to be lazy by Anonymous Monk
in thread Too lazy to be lazy by JadeNB

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