A feeding method of the extinct jawless heterostracans, among the oldest of vertebrates, has been examined and dismissed by scientists, using fresh techniques. A feeding method of the extinct jawless ...

Parthenogenesis, a form of asexual reproduction in which an egg develops in the absence of fertilisation, has traditionally been associated with invertebrates. However, recent discoveries have ...

This study is led by Prof. Jian-Fang Gui (Institute of Hydrobiology, Chinese Academy of Sciences). Polyploidy is generally thought to be a main driving force of speciation, as the polyploids possess ...

A feeding method of the extinct jawless heterostracans, among the oldest of vertebrates, has been examined and dismissed by scientists at the University of Bristol, using fresh techniques. The ...