Photograph: Eric Gay/AP My wise colleague Matthew Wells points out that the US spelling of centre has evolved relatively recently, as has the spelling of theatre on this side of the Atlantic.
In the African mole-rats, the higher estimated ω ratio along the ancestral branch, and the greater ω value for the clade (see supplementary Table S3, Supplementary Material online) suggest that the rhodopsin gene has evolved relatively rapidly in this group.
Whereas evidence has always been brought to bear in public health practice, the formal discipline of EBPH has evolved relatively recently and is now generally considered standard public health practice (Brownson et al. 2009).
Ancestral state reconstruction for the node of Acanthosoma denticaudum (a non-caring species in which egg smearing with developed POs occurs) and A. firmatum (a caring species with reduced POs) suggested egg smearing was still present in their most recent common ancestor and that maternal care in A. firmatum has evolved relatively recently.
As each intervention approach has evolved relatively independently, there is a need for further improvement in the integration of strategy and guidance material from the three threads; this would best be achieved through the involvement of the full range of workplace stakeholders.
It has recently been demonstrated that many of the inflammatory chemokines and their receptors exist in clustered groups in the mammalian genome and it is thought that these clustered chemokines have evolved relatively recently in evolutionary terms [ 4, 5].
Moreover, because of the lack of detailed morphological studies in many groups, especially at the microscopic level, even in extant forms it may be difficult to determine whether or not some characters have evolved relatively independently (e.g., U-shaped gut or tentacles).
It is possible that some of the enzymes in groups 1 3 could have evolved relatively recently and subsequently been horizontally transferred to the other domains of life but the evidence of horizontal gene transfer between organisms belonging to different domains of life is not abundant.
Dunbar said the increase in brain volume must have evolved relatively recently in human history.
All have evolved relatively small eyes, probably because vision is of limited value in silt-laden water, but the Indus and the Ganges dolphins have moved so far along this path that their eyes now lack a crystalline lens, rendering them functionally blind.
That means full bipedalism would have evolved relatively rapidly as tree-climbing ability declined.
