His subjects may be merely exotic versions of U.S. gangbangers with pit bulls, but Hugo's photos have a certain call-of-the-wild appeal.
There comes a time when musicians heed a certain call and come together as one, and that time arrived on Monday night as more than 70 performers joined up, above, to record a new version of "We Are the World" to benefit Haitian earthquake relief organizations, Reuters reported.
Next to hormones, the decision of an initiating bird to produce a certain call and of a responding bird to answer with a certain call may depend on the specific context, on the behaviour of the other group members, or on the responder's previous experience (as suggested for social bonding in other bird species; Vignal et al., 2004; Emery et al., 2007).
Remember when you could get the time by calling a certain phone number.
On a certain level, calling out Tucker Carlson for this sort of behavior is deeply unfair.
The chemical acts at a certain site, called the active site, triggering a biological response in a target tissue.
When light strikes a reflective surface at a certain angle (called the polarizing angle), the reflected light becomes completely polarized.
But if the company's stock price falls to a certain level, called a trigger, the investor can convert at will.
In 2010, Gretchen Grimm, Lydia Lund, Julia Shapiro, and Annie Truscott — four bored friends at Whitman College, in Walla Walla, Washington — formed a band and, with a certain irony, called themselves Chastity Belt.
But she noticed that when a certain someone called Mr. O'Donnell, "there was a different kind of warmth in his voice".
