For this reason, the constant-rate method gave overestimates of the monocot–dicot divergence and the age of core eudicots, especially when fast-evolving monocots were included in the analysis.
In contrast, the Li–Tanimura method gave estimates consistent with the known evolutionary sequence of seed plant lineages and with known fossil records.
It is also often blended with wool in order to create a yarn with less heat insulation. Dog hair has been found in yarns dating back from pre-historic Scandinavia, and in textiles from the Navajo Indians of North America.
It was the main fiber spun on the Northern American continent before the Spaniards introduced sheep.
Fallout from nuclear bomb tests during the cold war has just yielded encouraging news for those searching for ways to reverse heart disease.
A team led by Jonas Frisén from the Karolinska Institute in Stockholm has shown that adult human hearts make new muscle cells, albeit very, very slowly.
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