大象传媒

A 47-million-year-old, lemur-like fossil primate found in Germany, nicknamed Ida, is so well preserved that nearly every bone, the outline of its fur and even its last meal can be seen. But is Ida really a direct evolutionary ancestor of modern humans?
Continuing coverage of the repair and refurbishment of the Hubble Space Telescope, one of the most complex and dangerous Nasa missions ever. Amphibian expert Peter Narins on his latest discovery in Borneo, a frog with an ultrasonic song.