This week’s #WeirdChemistry: How some species of octopus can ‘see’ with their skin using light-sensing chemicals! (Weird Chemistry archive: http://wp.me/P4aPLT-Xz)

'Cultured meat' could spell end of tradition: ABConal cattle farming within decades, scientist behind lab-grown beef burger says

I asked people to send in / tweet #ScienceValentines and man did they deliver. Here’s a few from around the internets:

Are you an ionized halogen? Because I’m positive we should bond. - Flirting With Psychology

Our bond is so strong, it don’t need oxytocin. We’re woven together like a corpus callosum. The love we impart, though it’s felt in our heart, Is more of a limbic-type notion. - Joe Hanson, host of It’s Okay To Be Smart

I dig you like Curiosity digs Mars. - Bobak Ferdowski, Systems Engineer at NASA JPL via Science Friday

Is it just the negative delta H, or is it getting hot in here? - Debbie Mitchell’s student

You are the transcription enhancer of my love exons. - Jason Anthony Tetro, @JATetro

A mathematician from Rye Said please be the X to my y. Simultaneous equations Unlike conversations Are not just Pi in the Sky - Alison Richards, my radio editor

Boy, are you a prairie chicken? ‘cuz you’re making my heart go boom-boom. - Emily Graslie, host of thebrainscoop

May our atomic orbitals overlap for I would love to bond with you. Be my valence valentine. - my friend’s grandpa

You’re so hot, you make the Triassic seem like the Quaternary! - Erik Hankin, via the American Geophysical Union

If we were bacteria under selective antibiotic pressure – I’d totally give you my plasmid. - @twisteddoodles

My love for you is like dark matter: you can’t see it but it’s always there. - Symmetry Magazine (more here)

And many of the floral pigment variety:

Roses are red, Violets are [read the rest of this article for $35.95] - Sylvain Deville, @DevilleSy

Betelgeuse is red Rigel is blue You’re Siriusly hot and I’m starstruck by you. - Chella Quint, @chellaquint

Exhaust plumes are red Bright skies are blue If you were a barge I’d land my 1st stage on you - @ROCKETDRAG Do you get this one? If not, click here.

Harmful algal blooms are red Mussels are blue During this romantic seaside escape Lets not get paralytic shellfish poisoning - Alice Anderson, @alicechristinea

Here’s my favorite effort: