From The Guardian's Week in Wildlife -
A rare glimpse of a megapod of spinner dolphins where two superpods meet to socialise and mate.
Photograph: John Downer Productions
Migrating red crabs in Christmas Island, Australia. Millions of red crabs began their annual migration recently from the rainforest on Christmas Island in the Indian Ocean to the sea coast to breed. Local government closed roads during the migration, which requires at least a week.
Photograph: Imago/Barcroft Media
A side view of a sperm whale swimming off the coast of Dominica in the Caribbean. Armed with seven-inch teeth and weighing more than 45 tonnes, sperm whales are one of the world's most formidable predators. But far from being a Moby Dick-style man eater, they are friendly enough to swim within touching distance of humans.
Photograph: Franco Banfi/Barcroft Media
Red deer grazing at Jedforest Deer Farm as heavy rain continues in the Scottish Borders, UK;
Photograph: Chris Strickland/Corbis
A robin perches on a holly tree at Fota wildlife park in County Cork, Ireland.
Photograph: Brian Lawless/PA