New study analyzes why endangered parrot population isn't recovering

A pair of Puerto Rican parrots at their nest on the island's Luquillo National Forest. Fewer than 45 birds remain in the wild, making this one of the world's most endangered species. (Courtesy U.S. Fish and Wildlife Service )


'Mind's eye' influences visual perception

Jul 01, 2008
A graphic depiction of the sequence of events in the experiment from top left to bottom right. First, a person looks at a blank screen and imagines a green pattern. Next, she puts on the red-green glasses and looks at a screen ...

Using a light touch to measure protein bonds

Jul 01, 2008
The strength of actin binding protein interactions cross-linking a surface bound and bead tethered actin filament are probed using force from an optical trap. Filamin in green which forms networks of actin filaments shown ...

Super multi-use minerals unveiled

Jun 23, 2008
The structure of zeolite scolecite, showing the aluminium and silicon atoms as the large sphere, connected by oxygen atoms in blue. The openings in the structure are the pores that serve to transport the molecules through ...

Rapid escalation characterizes virus/host arms race

May 23, 2008
A scanning electron microscope image of a piece of biofilm shows that these microbial communities comprise a very tight association of microbial cells. The bacteria, archaea and viruses in the biofilm grow hundreds of feet ...

Important Plant Enzymes Identified

May 23, 2008
When the Brookhaven team "tagged" the isoflavonoid-synthesis enzyme with a green fluorescence protein, they were surprised to find the tagged enzyme localized in the plant cell nucleus (a). This is different from the commonly ...