/usr/share/cowsay/cows/moose.cow is in cowsay 3.03+dfsg1-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | $the_cow = <<EOC;
$thoughts
$thoughts \\_\\_ _/_/
$thoughts \\__/
($eyes)\\_______
(__)\\ )\\/\\
$tongue ||----w |
|| ||
EOC
|