This is figure 1, which shows a high-resolution environmental model of pesticide risk across Peru, designed to support spatial cancer epidemiology.

An analysis in Nature Health reveals spatial patterns of pesticide exposure and liver tissue-derived molecular signatures across Peru, establishing links between pesticide usage and cancer insurgence at the national scale. go.nature.com/41hOBAK 🧪

100 million years ago, an ‘evolutionary fuse’ was lit in the deep ocean, sparking squid diversification New evolutionary mapping suggests deep sea origins and mass extinction triggered diversification of modern squid and cuttlefish.

Limited fossil records and genomic information has made it difficult to determine the evolutionary history of squid and cuttlefish, until now. Published in @natecoevo.nature.com, @cephagus.bsky.social and team identify the ‘long fuse’ that led to today’s diversity: www.oist.jp/news-center/...

Pablo Villar et al discover male octopus mating arms are sensory organs used to find females, navigate internally to the oviduct & deliver sperm. From behavior to structure, these findings offer a framework for how sensory systems shape reproduction & species barriers
www.science.org/doi/10.1126/...

This work would not have been possible without an amazing team of collaborators, including @cefafalopodo.bsky.social and many others. Special thanks as well to @sangerinstitute.bsky.social for sequencing additional genomes used in this study through the Aquatic Symbiosis project. /8

The siphuncle of the ram’s horn squid does more than regulate chamber fluid for buoyancy; it also expresses genes involved in biomineralization, shell maintenance, and matrix remodeling, which may explain the persistence of this species and its shell, reminiscent of extinct ancestors. /7

Their internal shells retain signatures of these transitions, from retention to gradual reduction, convergence, and ultimately loss in shallow-water lineages. /6

Our analyses further suggest that decapodiforms originated through a rapid mid-Cretaceous diversification from deep-sea oceanic ancestors, with some orders later transitioning and diversifying in coastal and shallow-water habitats only after the K–Pg boundary /5

We also reveal a novel relationship among decapodiforms; they are divided into two major clades, a coastal and shallow-water clade (Sepiida, Myopsida, Idiosepiida, and Sepiolida; Corneata) and an open-ocean clade (Oegopsida and Spirulida; Acorneata). /4

We found that lineages often placed as early-diverging ( pygmy and bobtail squid) are fast evolving. In pygmy squid, this is reflected in extensive chromosomal rearrangements affecting ~half of the chromosome set, despite the broad chromosomal conservation observed across other decapodiforms(n=46)/3

By sequencing key genomes, including the pygmy squid I. pygmaeus, the Japanese flying squid T. pacificus, and the enigmatic ram’s horn squid S. spirula, and combining them with additional genomic resources; we address a long-standing debate over the relationships among decapodiform orders /2

Rapid mid-Cretaceous diversification of squid and cuttlefish preceded radiation into coastal niches - Nature Ecology & Evolution Phylogenomic analyses of newly sequenced and published decapodiform cephalopods separate open-ocean and coastal shallow-water clades, following rapid cladogenesis from the mid-Cretaceous.

Our new paper on squid and cuttlefish evolution is out in @natecoevo.nature.com : www.nature.com/articles/s41...
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This curious worm uprooted itself from the sand like a carrot being pulled up by an invisible person, and rolled around in the current for a bit before starting to dig itself back in. You can see the sand grains slowly traveling over some mucous layer as it slowly reverses into the sand.

The so-called Pikachu nudibranch (Thecacera pacifica) going about its business