Health

Home DNA tests doom anonymity for sperm, egg donors

All Ryan Kramer had to do was to swab his cheek and embark on nine days of geneological research to identify his biological father, a man who thought he would remain anonymous when he donated his sperm and never took a DNA ...

Oncology & Cancer

Breakthrough could end animal testing in carcinogen research

Animal testing has been at the heart of chemical safety assessments since the 1970s. Looking at the most recent figures, in 2011, more than a million animals were used to test whether chemicals would be harmful to humans ...

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