Week in wildlife

A 14-pointer red deer stag makes his way through the fern in a very autumnal Wollaton Park, Nottinghamshire Photograph: Andrew Matthews/PA

Jonathan Farries from the Forestry Commission in the Holystone forest, Northumberland, checking the GPS settings on a rare giant hairy northern wood ant nest. The nests are made from millions of conifer needles and have been given a unique GPS address and plotted on a map for their protection Photograph: Owen Humphreys/PA

Fallen leaves beneath a tree in Farnborough, England. According to a US Geological Survey report, the patterns of tree deaths across the globe reveal new risks to forests from climate change Photograph: Kieran Doherty/Reuters

A squirrel scampers down a tree in a park in Stavropol, Russia Photograph: Eduard Korniyenko/Reuters

An eagle flies past chinar (maple) trees in Srinagar, Kashmir Photograph: Tauseef Mustafa/AFP/Getty Images

A Bewick's swan flies into the Wildfowl and Wetlands Trust in Slimbridge, Gloucestershire, England. Bewick's swans have begun their annual migration from Arctic Russia to the bird sanctuary, but experts have expressed concern at their declining numbers across north Europe. Their arrival, later than usual and traditionally the signal of a cold snap, was a surprise because of recent high winds that were blowing from the wrong direction Photograph: Matt Cardy/Getty Images

Newly born seal pups on the Farne Islands in Northumberland, home to a colony of more than 4,000 seals. It is expected that up to 1,000 more pups will be born here before the end of November Photograph: Owen Humphreys/PA

The Rabb's fringe-limbed tree frog, which only became known to scientists four years ago, is one of 1,895 amphibian species that could soon disappear from the wild, says the IUCN Nearly 50,000 animals and plants were surveyed for this year's "red List" of endangered species and 17,291 of them are threatened with extinction. And here are the ten countries with the most endangered species in them Photograph: Brad Wilson/guardian.co.uk

A nandu or rhea bird at the Cerro Castillo, Patagonia, Argentina. It is the biggest bird in South America, and although it cannot fly its body is adapted to run Photograph: Ian Salas/EPA

A drop of water on a lotus plant in Sukhothai, northern Thailand. The plant is eaten in Thailand and used in beauty products, as well as featuring in Thai architecture and art Photograph: Barbara Walton/EPA

Coral has developed colourful glowing 'scabs' to help it heal from breakage and fish bites, a recent study has found Photograph: Caroline Palme/James Cook University

A ring-necked pheasant in its enclosure at the New Delhi zoo. The 214-acre park is home to more than 2,000 species of animals and birds Photograph: Manan Vatsyayana/guardian.co.uk

A grey-bellied night monkey (Aotus lemurinus), called Marteja, feeds its baby at the Santa Fe zoo in Medellin, Colombia. The cub is the first to be born in captivity after almost 10 years of attempts Photograph: Edgar Dominguez/EPA

The eye stalks of a fiddler crab. Researchers in Australia have discovered that female fiddler crabs rely on the male's large claw to protect them from other suitors Photograph: ARC Centre of Excellence in Vision and Science HANDOUT/guardian.co.uk

A yak grazes on a grass patch some 3,000 metres above sea level in the mountains outside Almaty, Kazakhstan Photograph: Shamil Zhumatov/REUTERS

Coated by an unidentified algae foam, a murre or guillemot waits to be rescued along the Oregon coast Photograph: Penelope Chilton/COSST

The Manu River in south Peru's Manu biosphere reserve. This 1.8m hectare reserve is home to 600 birds species, 11 monkey species and caymans and has one of the highest levels of biodiversity of any park, with more than 200 varieties of trees found in one hectare Photograph: Enrique Castro-mendivil/REUTERS

Red and green macaws on a clay riverbank at the Manu biosphere reserve Photograph: Enrique Castro-mendivil/REUTERS