Norbert Wu / Scalloped Hammerhead Shark (Sphyrna lewini) schooling around a seamount, Cocos Island Costa Rica Pacific Ocean

Tui De Roy / Scalloped Hammerhead Shark (Sphyrna lewini) swimming along deep wall, Wenman Island, Galapagos Islands, Ecuador

Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) ecstatic greeting display between pair at nest, Kidney Island, Falkland Islands

Mark Jones / Scalloped Hammerhead Shark (Sphyrna lewini) schooling along deep wall, Wenman Island, Galapagos Islands, Ecuador

Fred Bavendam / Scalloped Hammerhead Shark (Sphyrna lewini) swimming among reef fish, Cocos Island, Costa Rica

Mike Read / Black-browed albatross (Thalassarche melanophrys) in flight over the sea, near Kidney Island, Falkland Islands, December.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome) colony, Kidney Island, Falkland Islands, October. Vulnerable species.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome) colony, Kidney Island, Falkland Islands, October. Vulnerable species.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome) colony, Kidney Island, Falkland Islands, October. Vulnerable species.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome) pair preening in courtship display, Kidney Island, Falkland Islands, October. Vulnerable species.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome) pair preening in courtship display, Kidney Island, Falkland Islands, October. Vulnerable species.

Claudio Contreras / Southern Rockhopper penguin (Eudyptes chrysocome), Kidney Island, Falkland Islands, October. Vulnerable species.