Iron
Iron on World Data Ocean: a running collection of 2 stories we have gathered and hand-picked because they are worth your time. Every post here touches on iron in some way — the news, the analysis, the deep dives, and the occasional surprise find. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to explore, analyze, and… New stories are added to this page as we find them, so check back if you want to keep up with what is happening around iron, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything World Data Ocean is covering right now.

Sex-related differences in the lipid and micronutrient profile, but not the proximate composition, of the Mediterranean mussel Mytilus galloprovincialis: a pilot study with implications for sex-targeted aquaculture
Bivalves represent a vital, sustainable source of protein and essential polyunsaturated fatty acids (PUFA), notably EPA and DHA. This pilot study of the Mediterranean mussel, *Mytilus galloprovincialis*, reveals significant sex-related differences in nutritional composition, despite comparable proximate values between male and female specimens. Notably, female mussels exhibited substantially elevated lipid content, PUFA fractions, and critical n-3 fatty acids, alongside higher levels of vitamin B12, iron, selenium, and iodine.

Ancient Greek rings may have been forged with iron from meteorites
Recent chemical analysis reveals a compelling possibility: Ancient Greek elites may have adorned themselves with signet rings forged from iron originating in meteorites. Longitudinal studies of Bronze Age iron artifacts demonstrate a unique isotopic signature, strongly suggesting an extraterrestrial source. This discovery provides empirical validation of a previously speculative practice, highlighting the value placed on rare and prestigious materials. For further exploration of ancient civilizations, see our article "Pompeii’s survivors shine in a new documentary series."