(2010) concluded that if the Bristol Bay sockeye salmon (Oncorhynchus nerka, Fig. 1B) consisted of a single population rather than the extant several hundred discrete populations, year to year fluctuations in numbers of returning salmon would be more than twice as high, resulting in ten times more frequent fisheries closures.
The extant truth is that years are being lost needlessly from lives, life needlessly from years, as bickering over what we may not know forestalls good use of what we do.
Masters of marketing, repackaging geniuses -- it is almost impossible to keep track of the number of greatest-hits compilations the band has released over the years -- the extant Stones (only three of the original quintet remain) recently decided to compile their own official history of the band.
We reconstruct the epidemic history of SFTSV using molecular clock and coalescent-based methods, revealing that the extant SFTSV lineages originated 50 150 years ago, and that the viral population experienced a recent growth phase that concurs with and extends the earliest serological reports of SFTSV infection.
In this study, through a comprehensive phylogenetic and comparative genomic study of Mtr methyltransferase complex, we revealed an unexpected recurrent concerted evolution of mtrA genes, likely lasting throughout the whole history of the extant methanogens (over 2410 million years), after the convergent evolution of gene structure in three different archaeal lineages.
The Dipnoi first appeared in the Early Devonian Epoch (about 416 million to 398 million years ago), and the extant species occur in rivers and lakes in Africa, South America, and Australia.
Rather than evolving from a single colonization of the subterranean biotope, several invasions stretching back several millions of years led to the extant distribution of Astyanax cavefish populations.
The extant Books 11 20, from the second and third parts, cover the years 480 302 bc.
The debate about the merits of three-year curricula can be informed by evidence in the extant literature.
The extant nonspinose macroperforate lineages are the result of a radiation in the last 30 million years (review in 63).
The extant Fort Moultrie dates from 1809.
