The week in wildlife

Valdez, Alaska: Thousands of pink salmon swimming upstream to spawn. The commercial harvest of pink salmon is a mainstay of fisheries of both the eastern and western north Pacific; over 100 million have been taken in recent annual harvests in Alaska alone Photograph: Lucas Jackson/Reuters

Fort McMurray, Canada: A sandpiper searches for food along the Clearwater river. This is one of the most abundant shorebird species in North America with a population in the millions Photograph: Carl Patzel/The Canadian Press/Fort McMurray Today/AP

Valdez, Alaska: Steller sea lions relax on a rocky shore of Prince William Sound. The Steller sea lion has attracted considerable attention in recent decades due to significant, unexplained declines in their numbers over a large portion of their range in Alaska Photograph: Lucas Jackson/Reuters

Huay Kha Khaeng wildlife sanctuary, Thailand: An Eld deer with radio collar around its neck after it was released. Nine critically endangered deer from a species that vanished from the wild three decades ago were released in a bid to bring ecological balance to one of the country's national parks Photograph: Arnuparb Yhamdee/Zoological Park Organization/AP

Fifteen white-tailed sea eagles are to be released from a secret location in Scotland. It is hoped the efforts will lead to the successful reintroduction of the birds Photograph: Andy Hay/RSPB/PA

Rio de Janeiro, Brazil: A couple of Lear's macaw perch on a brach at the zoo. The Riozoo foundation inaugurated a place for the macaws, whose species is in critical danger of extinction Photograph: Vanderlei Almeida/AFP

Per, Hungary: A ground squirrel which was flooded out of its hole at an airport. Environment protection experts resettled 50 ground squirrels to a nearby national park Photograph: Karoly Gyoeri/EPA

Bekesbourne, UK: Nanyo washes one of his two clouded leopard cubs at Howletts wild animal park. Clouded leopards are said to be notoriously difficult to breed in captivity Photograph: Gareth Fuller/PA

Tokyo, Japan: A Japanese macaque licks a block of ice which contains their favourite fruits at Ueno zoo. The Japanese Macaque is the only animal other than humans and raccoons that is known to wash its food before eating it Photograph: Yoshikazu Tsuno/AFP

Bristol, UK: A endangered Chinese box turtle which recently hatched at the zoo. Chinese box turtles are hunted for their meat, used in medicine or kept as pets Photograph: Matt Cardy/Getty

South Georgia: An elephant seal with a radio transmitter and sensors glued to its head. Seals have been recruited by scientists to break through a critical blind spot and chart climate change under the Antarctic sea ice in winter Photograph: Martin Biuw/AFP

Taiwan: A Taiwan humpback dolphin, known locally as Matsu's fish. An environmental group has called on Taiwan's government to protect one of the most endangered dolphins in the world Photograph: Shih Chu Yang/FormosaCetus Research & Conservation Group/Reuters

Old San Juan, Puerto Rico: Stray cats browse for food given to them by women from the local charity Save A Gato. The charity was created in 2004 to deal humanely with the problem of the growing number stray cats, by capturing, neutering and releasing them Photograph: Brennan Linsley/AP

Tskhinvali, South Ossetia: A dog looks out of a damaged house as Russian tanks invade the disputed region Photograph: Dmitry Kostyukov/AFP

Nuremberg, Germany: Polar bear cub Flocke in her enclosure at the zoo Photograph: Joerg Koch/AFP

Valdez, Alaska: A horned puffin on a rocky cliff in Prince William Sound. The population of these birds has declined due to the introduction of rats onto some islands used for nesting Photograph: Lucas Jackson/Reuters

Zurich, Germany: A bee collects nectar from a sunflower Photograph: Arnd Wiegmann/Reuters