But more needs to be done. She says there currently are not enough programs to study bird numbers and behavior.

VOA: special.2009.05.12

The study found that about fourteen percent of those receiving the e-mail removed sexual behavior information from their site.

VOA: special.2009.02.03

Or,at least their study shows that music similar to the monkey's own sounds can affect their feelings and behavior.

VOA: special.2009.09.29

One study showed that signs of disorderly behavior and theft lead to additional acts of crime.

VOA: special.2009.03.03

The Framingham study gathers information about physical and mental health, personal behavior and diet.

VOA: special.2009.12.22

Mister Opiang's study gives new information about the echidna and its behavior.

VOA: special.2009.07.07