During summer evenings 'screaming' parties of swifts are joys to behold as they hurtle around at rooftop height at amazing speed, all the time uttering their sharp, piercing calls.
"Come on Bernie, join us," Sharp called.
Dr. Sharp calls him "the supreme theoretical biologist".
Buck set up the action, offered some storytelling and made sharp calls.
The sharp calls and loud, raspy, accelerating song of the Dusky-throated Antshrike are some of the most characteristic sounds of understory mixed species flocks in Amazonia.
The coalition also issued sharp calls to Mr. Assad's main allies, Russia and Iran, to back their calls for a political solution with action.
Kingfishers often bob their heads and the forepart of their bodies when nervous or mildly alarmed; when startled into flight, some give sharp calls.
Ms. Sharp calls her silk and wool rug Moses Brown (on the wall, top, brown and black wavy stripes); it costs $4,455.
In December 2002, Sharp called RNAi "the most important and exciting breakthrough of the last decade, perhaps multiple decades," when the phenomenon was named "breakthrough of the year" by Science magazine.
