He told students it was time for them to learn what it means to be a human being on Earth at a time when every living system was failing.

VOA: special.2009.06.05

In one recent study - among the 1,000 he's published - Ayala establishes that gorillas and chimps may serve as reservoirs for the parasites that cause human malaria.

VOA: standard.2010.04.05

He says poverty, gender inequality, and conflict contribute to human trafficking, but it is the demand for unreasonably cheap labor and cheap goods that drive this unscrupulous trade.

VOA: standard.2009.10.19

He also led the Congressional effort to impose sanctions on South Africa over apartheid in the 1980s, fought for human rights in Chile, and championed the needs of refugees around the world.

VOA: standard.2009.08.26

Human Rights Council in Geneva. He has been the Special Rapporteur for North Korea since 2004, but has never been granted permission to enter the country and has not received cooperation from the country's government.

VOA: standard.2009.10.22

The director of the Harare-based Research and Advocacy Unit,Tony Reeler, says a review of investigations by numerous rights groups shows that torture and gross human rights violations in Zimbabwe have been perpetrated for decades on what he calls an epidemic scale.

VOA: standard.2009.06.21