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Category: Biology

Octopus and squid DNA forms flexible loops linked to brain development

A Nature Communications study maps how DNA folds in squid, cuttlefish and octopus: stable domains, shifting loops, and one switch deletion that shrank brains.

Why big dogs die younger: DNA study finds faster epigenetic ageing

A Science study of 894 pet dogs links faster DNA-methylation ageing to large size and male sex. What it found, how, and why it doesn't yet prove a cause.