Urbanization is a global phenomenon with profound effects on the ecology and evolution of organisms. We examined the relative roles of natural selection, genetic drift and gene flow in influencing the ...

This is a preview. Log in through your library . Abstract In ovulo embryo culture followed by culture of excised immature embryos produced interspecific hybrids between Trifolium repens L. (white ...

Beddows, A R. 1949. A tour of grasslands in western France, July. 1948. J Brit Grossl Soc, 4, 287–291. Article Google Scholar Clausen, J, Keck, D D, and Hiesey, W M. 1940. Experimental studies on the ...

What’s so lucky about a four-leaf clover? “Well, you’re lucky to find one in the first place,” said Oklahoma Medical Research Foundation President Stephen Prescott, M.D. “The symbolism of the ...

Thousands of people don a shamrock on St Patrick's Day but how many know their trifolium repens from their oxalis acetosella? BBC News Online unearthed the truth rooted behind the myth. It is commonly ...