he Madagascar poison frog (Mantella), in addition to secreting poisons on its skin, also secretes sucrose in the wild (captive-born Madagascar poison frogs do not secrete the sucrose), which marks the first instance of an animal secreting the sweet substance, according to a report on Discovery.com. Leer más.

Following a cycle as old as time, 114 sea-turtle hatchlings returned to the sea here with a little help from students and workers who gave them a push along the soft sand and into the welcoming surf. Leer más.

En biología evolutiva se utiliza mucho el símil de la carrera armamentística. Los animales desarrollan estrategias para defenderse de sus depredadores, y estos adaptan las suyas para atrapar a las presas, en un ciclo sin fin. Leer más.

NOVA visits David Wake, a renowned evolutionary biologist at the University of California, Berkeley, as he explains why members of the same species of California salamander look and behave so differently. It’s a case study of Darwin’s theory of evolution by natural selection, and an example, Wake says, that Darwin himself would have loved. Leer más.

A COLONY of endangered salamanders – that can regrow limbs and even damaged brain and heart cells – have been donated to the Blue Reef Aquarium in Newquay. Leer más.