The larger animal is a pack hunter, using numbers to herd prey into an ambush or operating singly to hunt smaller prey, like Jack.

These causes do not operate singly, and as a rule all four of them are present in some degree.

These units are classed as 2750 Class, and have a cab at each end so that they can operate either singly or as part of a set.

Trams operated singly, and were mostly single-deck but some double-deck.

Originally, the first 600 cars as delivered could operate singly, and dubbed A-types.

They operate in regular pairs, such as 675 and 685, except for 678 to 680, which operate singly.

They, on the other hand, seem to take more risks, for they operate singly.

The Toronto subway cars used for filming cannot operate singly, so a two-car set was used.

Public transport services are povided by matatus and buses either operating singly or as parts of franchises and companies.

They can operate either singly or in pairs.