hummock

The tiny footsteps glowed under her flashlight, leading around mossy hummocks and beneath fallen branches and up tree trunks and then back down again.

Spinifex grasses start out as small round hummocks, said Angela Moles, an ecologist at the University of New South Wales and an author of the new paper.

Swales and hummocks created through excavation connect the wetland cells and diversify the habitat and landscape features.

The explosions occur underneath small hills or hummocks on the tundra where gas from decaying organic matter is trapped underground.

After the eruption, scientists analysed the landscape and found it littered with hummocks — large hills and mounds that had been transported downslope in intact blocks.