The ricefield rat lives in large groups which consist of a dominant male and high ranking female.

Rattus argentiventer's main diet includes termites, insects, grasshopper, snails, seeds, nuts, rice, vegetables, and fruits.

The ricefield rat can be found throughout Southeast Asia consists of Indochina region, Thailand, Peninsular Malaysia, Indonesia, Philippine, and New Guinea as major rodent pest in rice field area.

[2] Rat-catching season reaches its height after the rice harvest in June and July when rats have little to eat.

That lack of food coincides with seasonal rains that force the rodents onto higher ground, where traps are set up to catch them.