The Groundplan-divergence Method of constructing phylogenetic trees was created during the 1950's for illustrating systematic principles, but it was taken up widely by researchers carrying out ...

How do we know what today's lifeforms were like when they first evolved? For years, biologists could make inferences about how recent species shared common ancestors based on an approach called ...

In On the Origin of Species, Charles Darwin proclaimed that “our classifications will come to be, as far as they can be so made, genealogies”. That turned out to be easier said than done. Even as late ...

P Skelton, A Smith and N Monks Cambridge University Press, Cambridge, UK; 2002. 80pp plus CD. £29.95, hardback ISBN 0-521-52341-9. There is barely a field of biology that remains untouched by the use ...

Cladistics is one way scientists classify organisms. A cladogram shows the nature of evolutionary relationships that may have occurred, similar to a family tree. You will make a cladogram in this ...

Cladistic and taxonomic treatments of the same plant group usually exhibit a mixture of congruences and incongruences. The question arises in the case of the incongruences as to which version is right ...

Cladistics is one way scientists classify organisms. A cladogram shows the nature of evolutionary relationships that may have occurred, similar to a family tree. You will make a cladogram in this ...