Tag Archives: phylogeny

Cyclophyllidean tapeworms: phylogeny reconstructed

‘Parasite’ is a term used collectively to describe organisms that have the ability to survive at the expense of another organism (the host). They are notorious in being capable of parasitizing a vast range of organisms (insects,

Lyme disease causing Borrelia are genetically distinct from their relapsing fever causing cousins

Lyme disease, a tick-borne infection caused by the bacterium Borrelia burgdorferi and its relatives, is currently the most prevalent vector-borne disease in North America and temperate regions of Eurasia. Increasing temperatures have expanded the habitat range for

Natural selection favours large size

In many animal populations, bigger individuals often seem to mate more successfully and have a better chance of survival than smaller individuals. On a far larger scale, fossil evidence from some groups of animals suggest that species