So it was with a sense of caution that I approached some Swiss research in the latest editionof the journal Science in which paralysed rats were able to walk again after a combination of electrical-chemical stimulation and rehabilitation training.
"Stem-cell research is in a very early state and while it may hold great promise we should not overstate the state ofscience, or politicise these issues, " he wrote in a recent editionof Nature magazine.
Jeanne Zeh and her colleagues, who published their results in the current editionof Proceedings of the National Academy ofScience, have shown that in a type of arthropod known as a pseudoscorpion, polyandrous females do, indeed, produce more offspring as a direct result of their promiscuity.
Dr Niewoehner's evidence, published in the current editionof the Proceedings of the National Academy ofScience, comes from fossils dug up in the Middle East.