Paleontologists at University College Cork have discovered that the evolution of fish is linked to the shape, location and abundance of tiny melanin-rich granules called melanosomes. These features survive in 300-million-year-old fossil fish, suggesting that melanosomes have played a key role in...
Source: [Phys.org](https://phys.org/news/2026-10-paleontologists-reveal-hidden-role-eye.html)