Whether it's hunting invasive pests or rolling in a river like an otter, there's a lot to love about the rakali (Hydromys chrysogaster). The nation's biggest rodent is perhaps its most resourceful ...

An introduced black rat scratches through leaf litter, looking for food. Nearby, a native water rat watches on, its beady eyes shining. The native rat pounces out from the shadows, sending the invader ...