The effects of the endocrine disruptor linuron on frogs are not limited to those exposed, but are passed on to their offspring and grand-offspring. First generation offspring have reduced body weight and decreased fertility, while second generation offspring have increased body weight and a disrupted metabolism. This is demonstrated by a new study conducted by researchers at Uppsala University and Stockholm University that has now been published in the journal Science of the Total Environment.
The behaviour of neighbours is of crucial significance for the behaviour of the individual and thus for the shoal or flock. Moreover, collective behaviour develops very rapidly. This is shown by a new study of how, in just three generations, fish can be bred to swim in shoals.