How the largest animals to have ever walked on Earth fed, and how this allowed them to live alongside one another in prehistoric ecosystems, is the subject of new research. Leer más.
o single ‘one-size-fits-all’ model can explain how biodiversity hotspots come to be, finds a study of more than 700 species of reptiles and amphibians in Madagascar. By analyzing the distribution of Madagascar’s lizards, snakes, frogs and tortoises, researchers find that each group responded differently to environmental fluctuations on the island over time. Leer más.
A snake-like robot developed by researchers at Carnegie Mellon University climbs a tree. The robot was able to climb sloping sand when it was programmed with the unique wave motion discovered in the sidewinder snakes. Leer más.
A snake-like robot developed by researchers at Carnegie Mellon University climbs a tree. The robot was able to climb sloping sand when it was programmed with the unique wave motion discovered in the sidewinder snakes. Leer más.
En Tortuguero nos dijeron que era posible encontrar alguna hembra de Tortuga verde (Chelonia mydas) en la playa aún al amanecer. Con la idea de hacer fotografías a alguna hembra con las primeras luces del día, recorrí la playa. Tuve mucha suerte y encontré dos parejas copulando que habían llegado a la playa arrastradas por el oleaje. Las cópulas se producen habitualmente a pocas millas de la costa frente a la playa de desove. Leer más. |