"Not a rat enters High Horn without my permission."

Willard then abandons Ben, goes home and begins sealing up any holes that the rats can enter his house through.

Working memory is assessed when the rats enter each arm a single time.

Rat Poker - Coloured rats enter and walk clockwise around a playing area.

Probable date at which the brown rat first enters Britain.

The black rat entered the lair of the Golden deferentially, his head lowered, ears back.

During all trials the amount of time required to visit the initial 4 arms and the order that each rat entered the arms were recorded.

A rat rarely enters by the front door.

The rats enter the same way, uncontested by natural predators, like cats and snakes, which have become extremely scarce.

He saw that the rats had entered the train and were now attacking the passengers who hadn't managed to get off or had scrambled back on.