Ancient Hox code reveals the developmental roots of vertebrate hind fins and limbs

October 19, 2026 · 2:00 pm 1 sources

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• Ancient Hox code reveals the developmental roots of vertebrate hind fins and limbs
  Phys.org · October 19, 2026 14:00
  Paired appendages—the pectoral and pelvic fins of fishes and the forelimbs and hindlimbs of tetrapods—were a major innovation in vertebrate evolution. Their emergence greatly expanded the ways vertebrates could move through their environments and ultimately provided the developmental foundation…