Anurans show the highest diversity in reproductive modes of all vertebrate taxa, with a variety of associated breeding behaviours. One striking feature of anuran reproduction is amplexus. Leer más.
Anurans show the highest diversity in reproductive modes of all vertebrate taxa, with a variety of associated breeding behaviours. One striking feature of anuran reproduction is amplexus. Leer más.
The Whip snakes of the genus Dolechophis in Iraq are distributed in various habitats. Two species of jagularis species group was known in Iraq. Leer más.
Environmentally cued hatching allows embryos to escape dangers and exploit new opportunities. Such adaptive responses require a flexibly regulated hatching mechanism sufficiently fast to meet relevant challenges. Leer más.
Hace 150 millones de años la superficie de Asturias poco se parecía a la que vemos ahora. A principios del Jurásico Superior la actividad tectónica produjo un cambio radical en el paisaje que implicó la elevación de parte del territorio y la mar, que ocupaba gran parte de lo que hoy es Asturias se retiró, apareciendo entonces zonas litorales que rápidamente serían colonizados por multitud de dinosaurios, tortugas y cocodrilos. Leer más.
A recent study by Damien Esquerre and Scott Keogh published in Ecology Letters found that pythons and boas, the two famous constrictor snake families, have evolved convergent head shapes. The study was based on over 1,000 specimens and including most of the species. Leer más.