Sentence examples for may have gradually from inspiring English sources

Like many other emotions, Dr. de Waal said, empathy may have gradually evolved into a more complex response, but at its roots it is simple and shared with other species.

The occurrence of rapid boiling and the accompanying explosions may have gradually propagated to the deeper parts of the hydrothermal system, resulting in the intermittent generation of ballistic ejecta during the explosive phase of the eruption, which continued for approximately 1 h.

The choice of maize farming may have been informed by dietary preferences but persistent failure of the crop over the years may have gradually informed the decision to increase acreage of more drought-tolerant crops such as millet and green gram (Smucker and Wisner 2008).

A plausible explanation is that these circulating strains are less affected by strong vaccine-driven selective pressures and are preferentially selected; thus, the antigenic divergence observed between circulating strains and vaccine strains may have gradually decreased the efficacy of these vaccines and led to the reemergence of pertussis.

Mammalian mtDNA may have gradually deviated from its ancestral form [ 9].

Hence, once subtype 6a was established in the non-Guangdong regions, it may have gradually overtaken the other subtypes.

Prior to the outbreak food security may have been gradually improving, but it remained tenuous.

It may have happened gradually, a slow procession tiptoeing from my senses: first, the subtlest smells; last, the most obvious ones, starting (say) with the woody fragrance of pencil shavings and ending with the reek of farmyard slurry.

This was mainly an urban phenomenon, however; rural life was barely affected except for what may have been gradually increasing tenancy and a slow impoverishment that sent rural unemployed into cities and armies or into banditry.

Angiosperms, he said, may have evolved gradually in a remote region of the world as yet unexplored by scientists.

Instead, William Bottke of Cornell University and his colleagues argue, the asteroid may have been gradually nudged by a gentle push from sunlight into one of numerous, weaker "escape hatches" created by Mars (Science, 13 August 1999, p. 1002), taking tens of millions of years longer to approach Earth than assumed.