They occasionally form large flocks, ranging from 26 to 200 birds.

They occasionally form structured colonies which go on to create microbial mats.

Specimens occasionally form buds at the leaf tip which can develop into new plants.

They may occasionally form small groups of up to four to feed together when grazing is in short supply.

Lodgepole is not usually found near tree line, although it does occasionally form krummholz.

While six factors appear to be generally necessary, tropical cyclones may occasionally form without meeting all of the following conditions.

It occasionally forms subgroups, including specialists not among its 60 permanent members, to study particular topics.

In this area, limestone rocks occasionally form the banks of the Tosna.

M. uranoscopus occurs in small groups and occasionally forms schools.

The lower boundary of abdomen occasionally forms a deep curve.