Comparative genomics reveals signatures of distinct metabolic strategies and gene loss associated with Hydra immortality
This study presents a high-quality genome assembly of the immortal *Hydra vulgaris* and reveals that its longevity is associated with distinct metabolic signatures and the paradoxical loss of canonical anti-aging genes, rather than their presence, suggesting that immortality arises from unique metabolic organization and epigenetic stability rather than simply accumulating longevity factors.