OVER a period of two months, a heavy rat population on a farm in the west of Scotland was treated with two anticoagulant poisons, ‘Diphacinone’ and ‘Warfarin’. Although the treatments were ...

SINCE 1949, Barr et al. and others 1–3 have described the presence of ‘sex chromatin’ in various tissues of several animal species, arriving at the conclusion that in all of them behaviour ...

Focusing on nature’s occupation or cohabitation in a human-dominated environment, whether capturing the magic of the commonplace or the surprise of the unexpected or normally unseen. Ingo Zahlheimer ...

Science Photo Library Has the black rat (Rattus rattus) been falsely blamed for spreading plague during the Black Death? "We have good mortality data from outbreaks in nine cities in Europe," Prof ...