Men with deep voices have lower sperm counts than their higher-pitched counterparts, researchers have discovered.

Next month, Gareth Morgan will lead an expedition of 40 everyday Kiwis to Antarctica. The last of a 3-part series analyses the impact on wildlife of climate change and the race for resources.

Andrew Stone surveys some of the more remarkable trends and breakthroughs which may - or may not - come to pass next year

John Roughan asks: What else might the authorities not want a traumatised population to know?

The name of a baby could negatively affect its future, according to new research.