The above picture is one of the earliest pieces of confirmed concept art, it is also a narwhal.
[u]http://i1078.photobucket.com/albums/w489/rabidshrew8u/narwhalss_zpsd16b3918.png[/u]
I was actually hoping to make a funny picture out of it, but my pen tablet is throwing a tantrum, it's the cheapest Wacom Tablet so I guess I can't complain... So I drew this with no pressure sensitivity.
Check out another place I spotted the inspiration/reference in the concept art! [u]http://www.bungie.net/7_I-spy-Washington-state-in-the-Destiny-concept-art/en/Forum/Post?id=62346590#referred-Progo[/u]