{"ok":true,"nota":{"id":"3cd06b6651b935f4","slug":"los-pigmentos-de-los-peces-fosiles-de-hace-300-millones-de-anos-muestr-3cd06b","titulo":"Los pigmentos de los peces fósiles de hace 300 millones de años muestran cómo evolucionaron los vertebrados","resumen":"Paleontólogos de University College Cork hallaron que la forma, ubicación y cantidad de gránulos de melanina llamados melanosomas se conservan en peces fósiles de 300 millones de años, lo que sugiere que estas estructuras fueron clave en la evolución de los vertebrados.","fuente":"phys","fuenteNombre":"Phys.org","color":"#2b5c8a","autor":"","url":"https://phys.org/news/2026-10-paleontologists-reveal-hidden-role-eye.html","imagen":"https://scx1.b-cdn.net/csz/news/tmb/2026/palaeontologists-revea.jpg","tema":"ciencia","subtemas":["paleontologia","evolucion","fosiles","melanina"],"entidades":["University College Cork","Irlanda"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-27T19:00:04.000Z","indexTs":"2026-10-27T19:03:18.874Z","hash":"080fe6ed27e3ba77dbd33ae969d5d03a0010775339480cf435f541b7d16a0387","tsa":{"time":"Oct 27 19:03:48 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Los colores que tenían los animales de hace cientos de millones de años casi nunca se conservan, y estos fósiles dejaron huellas de sus pigmentos. Esto permite reconstruir cómo se veían y cómo se comportaban, algo que hasta ahora era casi imposible. Para el público, es una ventana directa a un pasado que parecía borrado para siempre.","quienFirma":"University College Cork","confianza":"revisado","consulta":null},"sello":{"hash":"080fe6ed27e3ba77dbd33ae969d5d03a0010775339480cf435f541b7d16a0387","sello":"207db672ad29353f76045a6629e82a418ec13beaa7934516fa8c49d2a44650f6","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6589893,"aleatorio":"f92c8bfa6985c786738fc95e8ccea3a00f1cd01d04edc122ae540db1443cba21","tiempo":"2026-10-27T19:03:30.000Z"},"nist":{"cadena":2,"pulso":2001880,"salida":"97D58DAB80861814525359A5D664FFD4B7B088441B28A8893B7B1A8667732377FBD3451D86BB3AC9C1659ED7F9D7E73F1B9B12CFF0FD93CCF67D8C768B680E5A","tiempo":"2026-10-27T19:02:00.000Z"},"noAntes":"2026-10-27T19:03:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 27 19:03:48 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Paleontologists reveal the hidden role of eye pigments in vertebrate evolution","descripcion":"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 vertebrate evolution since the major fish groups evolved around 445 million years ago.","pubDate":"Tue, 27 Oct 2026 15:00:04 EDT","url":"https://phys.org/news/2026-10-paleontologists-reveal-hidden-role-eye.html"},"indexado":"2026-10-27T19:03:18.874Z"}}