Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Treehoppers (Membracidae) are, in most respects, nothing special ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species ...

Introduction. Definition of natural selection ; Relationship to genetic drift and evolution ; Restricted meanings of "natural selection" ; Modes of selection ; Summary -- Philosophical comments.

Conditions encountered in the womb can have life-long impact on health. Scientists previously assumed this is because embryos respond to adverse conditions by programming their gene expression. Now ...