Albert Aanensen / Invasion of heather in tussock land. Mt Tongariro NP, New Zealand

Stephen Belcher / Takahe (Porphyrio mantelli) emerging from tussock grass, South Island, New Zealand

Onne van der Wal / Tussock grass along the coastline with a cruising yacht anchored in the sheltered Cobber's Cove, South Georgia.

Flip Nicklin / Antarctic Fur Seal (Arctocephalus gazella) in tussock grass, South Georgia Island

Jan Vermeer / Antarctic Fur Seal (Arctocephalus gazella) near King Penguin (Aptenodytes patagonicus) colony, Salisbury Plain, Antarctica

Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) females resting on green tussock clumps on beach near sea, foggy evening, fall, Trollhul, South Georgia Island, Southern Ocean, Antarctic Convergence

Mitsuaki Iwago / Eastern Grey Kangaroo (Macropus giganteus) sitting in field of tussock grass, Australia

Colin Monteath / Tussock grass and moss, South Georgia coastline from Albatross Island, Antarctica

Mitsuaki Iwago / Western Grey Kangaroo (Macropus fuliginosus) standing alert among tussock grass, Kangaroo Island, Australia

Jan Vermeer / Hare's-tail Cottongrass or Sheathed Cottonsedge (Eriophorum vaginatum) in evening light, circumboreal species

Mitsuaki Iwago / Western Grey Kangaroo (Macropus fuliginosus) pair grazing in tussock grass, Kangaroo Island, Australia

Tui De Roy / King Penguin (Aptenodytes patagonicus) in tussock grass showing brilliantly colored auricular patches, Macquarie Island, sub-Antarctica Australia

Tui De Roy / Coastal landscape showing storm-lashed cliffs, Olearia forest and tussock grass, Razorback Ridge, Snares Islands, New Zealand