{"ok":true,"nota":{"id":"24fbcba20849455c","slug":"hallan-una-cola-de-lagartija-conservada-en-ambar-que-tiene-unos-100-mi-24fbcb","titulo":"Hallan una cola de lagartija conservada en ámbar que tiene unos 100 millones de años","resumen":"Investigadores analizaron una cola de lagartija preservada en ámbar, con una antigüedad de unos 100 millones de años. El hallazgo permite datar cuándo apareció en estos reptiles la capacidad de desprender la cola para escapar de los depredadores.","fuente":"phys","fuenteNombre":"Phys.org","color":"#2b5c8a","autor":"","url":"https://phys.org/news/2026-10-lizard-tail-amber-million-year.html","imagen":"https://scx1.b-cdn.net/csz/news/tmb/2026/lizard-tail-preserved.jpg","tema":"ciencia","subtemas":["paleontologia","ambar","lagartijas","evolucion","defensa animal"],"entidades":["Phys.org"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-26T16:40:06.000Z","indexTs":"2026-10-26T16:46:45.683Z","hash":"77db7d8d8b99a54dd8d2896f33df3910d9105617cd20f82d4532e6b6db62145d","tsa":{"time":"Oct 26 16:47:25 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Una cola que se rompe para distraer a un depredador parece un detalle menor, pero es una de las defensas más extendidas entre las lagartijas actuales. Ahora se sabe que este truco ya existía hace unos 100 millones de años, en la época de los dinosaurios, lo que ayuda a entender cómo evolucionaron los reptiles. Para alguien de acá, es un recordatorio de que muchas adaptaciones que vemos hoy tienen una historia muy larga, aunque sea difícil seguir sus huellas.","quienFirma":"Phys.org","confianza":"revisado","consulta":null},"sello":{"hash":"77db7d8d8b99a54dd8d2896f33df3910d9105617cd20f82d4532e6b6db62145d","sello":"a95aed1d35efbd2fdfbde81dbea7cee1bf1f23c0ef6889a58bbe6c930dcd6c8b","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6586740,"aleatorio":"db80d4e68050a39356b497d5e700cbc0f7a7b1eb1fdaf535cd95e07b1d14bcfa","tiempo":"2026-10-26T16:47:00.000Z"},"nist":{"cadena":2,"pulso":2000563,"salida":"C8C590206729C6BC867BCF78F2EB1D51758487809F28E1A4E5BBC82DAE41D36056FF00201D67C13EA1988BCF3050F074EA02227444BA1150A4D2CAFE8B56A2DF","tiempo":"2026-10-26T16:46:00.000Z"},"noAntes":"2026-10-26T16:47:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 26 16:47:25 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Lizard tail preserved in amber sheds light on a 100-million-year-old defense mechanism","descripcion":"A lizard making a dramatic escape, leaving its tail wriggling behind as it darts to safety, is an image familiar to many. Tail-shedding is one of the most widespread defenses against predators among living lizards, yet tracing the origins of this extraordinary ability has proved to be surprisingly difficult—how can we tell when this escape tactic first arose in lizards?","pubDate":"Mon, 26 Oct 2026 12:40:06 EDT","url":"https://phys.org/news/2026-10-lizard-tail-amber-million-year.html"},"indexado":"2026-10-26T16:46:45.683Z"}}