Scientists from the Centre for Animal Transgenesis and Germ Cell Research in Pennsylvania, US, report that they have successfully transplanted sperm-making tissue between different species of animals. Testicular tissue from newborn goats and pigs was implanted under the skin of mice in a laboratory. After several months, the tissue began...
Suzi Leather, the new chair of the UK's Human Fertilisation and Embryology Authority (HFEA), has urged women not to have children purely because they fear the ticking of their biological clocks. In an interview with the Observer newspaper in which she said there was 'more to life' than having children...
A new, more efficient, method of cloning mammals has been developed by Danish and Australian scientists. The technique, reported in New Scientist magazine, will be useful for farmers who wish to mass-produce animals, and could be used to clone endangered species to help to save them from extinction. Using nuclear...
A gene that may be responsible for the development of speech in humans has been discovered by scientists working for the Max Planck Institute in Leipzig, Germany. The ability to communicate and organise through speech and language is one of the the main differences between humans and other animals. People...
A Boston-based sperm bank has asked permission to import semen to the UK, reports the newspaper USA Today. Looking to extend its market, the commercial company wants to take advantage of the fact that sperm donations in the UK over the last 10 years have apparently decreased by 60 per...
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Ignoring the biological clock
by Juliet Tizzard
This week, the chair of the Human Fertilisation and EmbryologyAuthority suggested that there's more to life than having babies. In an interview with the Observer newspaper, Suzi Leather said that the biological clock should not be the determining factor in having a baby. And if you run out of...