Oriol Alamany / Lenga Beech forest (Nothofagus pumilio) and Frances Glacier on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

David Tipling / Nightjar {Caprimulgus europaeus} at nest in threat display towards advancing Adder, North Norfolk, UK, May

Tui De Roy / Perito Moreno Glacier actively advancing into Lake Argentina, Los Glaciares National Park, Argentina

Anup Shah / Cape buffalo herd (Syncerus caffer) advancing on a pride of lions (Panthera leo). Masai Mara National Reserve, Kenya, August

Anup Shah / Cape buffalo herd (Syncerus caffer) advancing on a pride of lions (Panthera leo). Masai Mara National Reserve, Kenya, August

Anup Shah / Cape buffalo herd (Syncerus caffer) advancing on a pride of lions (Panthera leo). Masai Mara National Reserve, Kenya, August

Charlie Summers / Tawny eagle (Aquila rapax) advancing on another unseen Eagle using an aggressive posture. This is the light phase of the Tawny eagle. Ngorongoro Crater, Tanzania, February

Bryan and Cherry Alexander / Sand covers a central part of the advancing Eielson Glacier. Rypefjord, East Greenland, September 2005.

Mark Moffett / Amazon Ant (Polyergus sp) group at the advancing end of a slave raid, Sagehen Creek, California

Mike Potts / Mendenhall Glacier joining the sea, Juneau, Alaska, USA 1988

Hanne & Jens Eriksen / San Rafael Glacier calving, Chilean Fjords, Chile, South America

NEIL NIGHTINGALE / Aerial view of glacier at Sverdrup Pass, Ellesmere Island, Canadian Arctic. 1994.

Gerry Ellis / Spruce and deciduous trees advancing into former Beaver pond, display of wetlands succession, Algonquin Provincial Park, Ontario, Canada

Tui De Roy / Advancing Aa lava flow slowly consuming vegetation in its path, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Advancing Aa lava flow slowly covering older weathered flow, Cape Hammond, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Advancing Aa lava flow slowly covering older weathered flow, February 1995, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Perito Moreno Glacier advancing across Lake Argentina, seen from Cerro Buenos Aires, Los Glaciares National Park, Patagonia, Argentina

Tui De Roy / Perito Moreno Glacier actively advancing into Lake Argentina, Los Glaciares National Park, Argentina

Mark Moffett / Marauder Ant (Pheidologeton silenus) swarm, tens of thousands of advancing ants can cover several square meters and attack anything that gets in their path, Gunung Pulai Recreational Forest, Johor, Ma...

Andrew Parkinson / Sea cockroaches retreating from advancing tide {Ligia dilatata} Cape of Good Hope, South Africa

Anup Shah / Lion-tailed Macaque (Macaca silenus) female clutching her baby to protect it from advancing male, Indira Gandhi National Park, Western Ghats, India

Nick Upton / Ruins of 12th century Kenfig Castle, which was engulfed by advancing sand dunes and vegetation in subsequent centuries, Kenfig National Nature Reserve, Glamorgan, Wales, UK. June, 2022.

Nick Upton / Ruins of 12th century Kenfig Castle, which was engulfed by advancing sand dunes and vegetation in subsequent centuries, Kenfig National Nature Reserve, Glamorgan, Wales, UK. June, 2022.

Alex Mustard / A symmeterical Brain coral (Diploria strigosa) infected by Stony Coral Tissue Loss Disease (SCTLD), the disease is advancing out in a circular pattern from a single point of infection, Grand Cayman, C...

John Waters / Common European adder (Vipera berus) advancing and flicking tongue, Mendips AONB, Somerset, UK, March.

Claudio Contreras / Red mangrove (Rhizophora mangle) saplings advancing over Turtle Grass (Thalassia testudinum), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Ciego de Avila, Cuba.