But he said it's still tough to tease apart that segment of the family tree.

NPR: New Study Restores Famed Fossil To "Bird" Branch

ADA2h, Dr Dobson and Dr Serrano are beginning to tease apart the factors that determine how susceptible a protein is to such partial unfolding.

ECONOMIST: Folding stuff

It could vaporize a rock and identify its minerals from the spectrum of light they emitted, or drill a sample and tease apart its chemical constituents.

NEWYORKER: The Martian Chroniclers

By using the kind of advanced marketing mix analysis we describe above, the company was able to tease apart marketing effects at a granular, tactic-by-tactic level for both offline (TV, print, radio etc.) and online marketing (e.g. search, banner ads etc.), and the degree to which they work together.

FORBES: 5 Steps To Squeeze A Lot More ROI From Your Marketing