Two cuttlefish interacting (cuddling) at the <a href="https://en.wikipedia.org/wiki/Georgia_Aquarium" class="extiw" title="en:Georgia Aquarium">Georgia Aquarium</a>, Atlanta, US.
<a href="https://en.wikipedia.org/wiki/User:Diliff" class="extiw" title="en:User:Diliff">Diliff</a>
CC BY 2.5
Taken by myself with a Canon 5D and 24-105mm f/4L IS lens at ISO1600.