The week in wildlife

A black woodpecker on Chiak mountain in Wonju City, South Korea. The black woodpecker lives in mature forest across the northern palearctic Photograph: Jeon Heon-kyun/EPA

A baby groundhog peeks out from a perch in the crook of an old apple tree in Moreland Hills, Ohio Photograph: Amy Sancetta/AP

A deer and a coyote stare at each other on the edge of the second fairway during a golf tournament in Bend, Oregon. The two animals faced each other for more than a minute until a woman ran at the coyote, scaring it away Photograph: Andy Tullis/guardian.co.uk

A warthog lounges in the sun while enjoying a grooming from a family of mongoose. The bizarre partnership between the animals helps the warthog get rid of parasites and gives the little mongoose a tasty meal. British photographer Anup Shah caught the remarkable behaviour on camera while he was photographing the Queen Elizabeth National Park, Uganda Photograph: Anup Shah/Caters News Agency

A rare ancient hay meadow now in full bloom at Barrowburn Farm in the Upper Coquet Valley part of the Cheviot Hills in Northumberland, where the farmer working with rangers from Northumberland National Park has managed his grazing land to encourage maximum species diversity Photograph: Hugh Macknight/PA

A Javan leopard growls inside a cage prior to its release into the wild in Kaduhejo, Banten province, Indonesia. The endangered leopard was rescued by environmental activists and members of Indonesian Natural Conservation Agency (BKSDA) after it was caught in a boar trap last year. It is believed there are fewer than 300 Javan leopards left in the wild mainly due to habitat loss and poaching Photograph: Tatan Syuflana/AP

Lynx cubs at the captive breeding centre of the Donana National Park, southern Spain. At the start of the 20th century there were 100,000 of the animals in Spain and Portugal, but urban development, hunting, and a dramatic decline due to disease in the number of wild rabbits, the lynx's main prey, meant that barely 150 remained in 2002 Photograph: Antonio Rivas/AFP/Getty Images

Takifugu Niphobles spawn at a shore of the Murozumi Penninsula in Hikari, Yamaguchi, Japan. The puffer fish gather at the waters edge at full tide to spawn Photograph: Sankei/Getty Images

Two ostrich chicks hatch out of their eggs at Mhou ostrich farm in Ruelzheim, Germany. The Mhou farm is the biggest ostrich breeding farm in Europe. From April to September, some 1,500 chicks hatch in the farm Photograph: Ronald Wittek/EPA

Wolverines have now returned to Colorado, marking the first known incidence of a wolverine in the state since 1919 Photograph: Yellowstone Wolverine Program/WCS

A seal rests on a sandbank in the Wadden Sea near Den Oever city in the Netherlands Photograph: Koen Van Weel/AFP/Getty Images

Gardener Heike Finke of the aquatic plant nursery Krause prepares a delivery of water lilies and hornworts for a customer in Althen near Leipzig, Germany. As the population of water lilies in natural waters is endangered, the species have been put under wildlife protection Photograph: Waltraud Grubitzsch/EPA

A stingray leaps out of the water as it is hunted by a killer whale, whose fin can be seen below the ray, just off St Heliers beach in Auckland, New Zealand Photograph: Brett Phibbs/guardian.co.uk

An opalescent nudibranch, or sea slug, grazes over the surface of a kelp leaf as it feeds on still smaller marine animals in a tide pool at Haystack Rock in Cannon Beach Photograph: Bill Wagner/AP

An albino baby turtle swims in a pond at Khram island, about 19 miles from Pattaya, east of Bangkok. Special care is given to around 15,000 green and hawksbill baby turtles hatched and housed at the navy's conservation centre each year. At about six-months-old the young turtles are released to the sea once their shells are strong enough to protect them from various predators Photograph: Chaiwat Subprasom/REUTERS

A pelican sits on a sign near an industrial plant in Newcastle, Australia, the world's largest coal port Photograph: Tim Wimborne/Reuters