Evolution: The Wallace Line Gets A New Hypothesis

Evolution: The Wallace Line Gets A New Hypothesis

The Wallace Line is called such because when Alfred Russel Wallace made his way to the East Indies to tackle the secrets of biology, he found there was a 'line' in the Malay Archipelago that divides…
Rupes Tenuis - Ice-Covered Martian North Pole

Rupes Tenuis - Ice-Covered Martian North Pole

The snow-laden region of Rupes Tenuis on the martian north pole got some images courtesy of ESA’s Mars Express orbiter. The images are centred around 81° north and 297° east and have a ground…
The Emotional Meaning Of Sweat

The Emotional Meaning Of Sweat

When threatened, many animals release chemicals as a warning signal to members of their own species, who in turn react to the signals and take action. Research by Rice University psychologist Denise…