(Photo credit: Douga. This cranky cuttle is an Australian Giant Cuttlefish, or Sepia apama.)
2. They're curious.
(Photo credit: Pearbiter.)
3. Sleeping baby cuttlefish: Adorable newborn, or most adorable newborn ever?
(Photo credit: Global Voyager.)
4. Great taste in pyjamas.
(Photo credit: Rling. This fellow is called a Striped Pyjama Squid, which is actually a species of cuttlefish.)
5. Long, dangly tentacles are cute, in a terrifying sort of way.
(Photo credit: Douga. This is another Sepia apama.)
6. They're unabashedly flamboyant.
(Photo Credit: Tom Weilenman. This is a Pfeffer's Flamboyant Cuttlefish, aka Metasepia pfefferi.)
7. Tentacley sign language.
(Photo Credit: Guppiecat. This is, in my opinion, a cuttlefish greeting pose.)
8. They look sort of like tiny, aquatic UFOs.
(Photo Credit: Lising)
9. They have the most oddly shaped skeletons ever.
(Photo Credit: Okoru. I think this is a clever message to humans, warning of theimpending cephalopod takeover. Like putting a horse's head in our collective beds every time a dead cuttlefish washes up on the shore.)
10. They're pretty in pink pairs...
(Photo Credit: Douga. These are Sepia mestus, or "Reaper Cuttlefish.")
11. ....Beautiful in blue....
(Photo Credit: Serk1)
12. ...And ravishing in red!
(Photo Credit: Douga.)
13. They let their tentacles do the walking.
(Photo Credit: Bigfez.)
14. Sometimes they imitate giraffes.
(Photo Credit: Global Voyager)
15. Cool undersea bachelor pads.
(Photo Credit: Nsaunders)
16. Built-in tuning forks/divining rods.
(Photo Credit: Douga)
17. As venomous as the Blue-Ringed Octopus. But still adorable.
(Photo Credit: Divers Log. Toxicity of Flamboyant Cuttlefish venom reported by Marine Biologist Mark Norman.)
18. Jet propulsion.
(Photo Credit: Scubaroog. Explanation of cuttlefish jet propulsion here.)
19. Tiny tentacle burrows.
(Photo by Global Voyager)
20. Moping cuttlefish look an awful lot like certain Elder Gods. I don't recommend upsetsting them.