Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.
How's this .......3 hearts, eyes similar to mammals in structure (although no colour vision) can squeeeeeeeeeze through the tiniest of spaces, beak looks like a parrots, tongue with teeth on it (radula), poisonous saliva, learns by observation, "taste buds" on the suckers.
That's off the top of my head.....no doubt others wil have stuff to add!