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 ...

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 ...

If they decline further in the next update, there is only one more category to reach: extinction. 1. Manus Island spiny rat (Rattus detentus) One of the species that has dropped categories this year ...

Before contacting us to report a rat, view the list below then find about rodents mistaken for rats. The Norway rat (Rattus norvegicus) is one of the most destructive creatures known to man, and the ...

The Norway rat has important impacts on our life. They are amongst the most used research subjects, resulting in ground-breaking advances. At the same time, wild rats live in close association with us ...