However, this behavior has only been observed a few times.

But of the 6,336 adults whose behavior was observed, only 82 percent actually did so.

I've always been kind of interested in observing people's behavior.

There aren't any around today, so you can't observe their behavior.

After two minutes, the mother returns and the baby's behavior is observed.

Babies observe others' behavior around 9 to 12 months of age.

Sexual behavior was most often observed among the youngest children, those 2 to 5 years old.

We're observing behavior that suggests a kid is at risk.

All we can do is observe their behavior and react to it when necessary.

Chaotic behavior can be observed in many natural systems, such as weather.