The week in wildlife

Week in Wildlife: A Cheetah (Acinonyx jubatus) is seen at a game reserve

A cheetah (Acinonyx jubatus) at a game reserve, 50 miles from Port Elizabeth, South Africa
Photograph: Robert Ghement/EPA

Week in Wildlife: A butterfly lands on a flower in Cundy's Harbor, Maine

A butterfly lands on a flower in Cundy's Harbour, Maine, on the first official day of summer, 21 June
Photograph: Pat Wellenbach/AP

Week in Wildlife: Damselfish 'Gardeners' Selectively Weed Algal Gardens

A damselfish (Stegastes nigricans) selectively 'weed' algal gardens in the Indo-West Pacific region
Photograph: Hata et al./BMC Evolutionary Biology

Week in Wildlife: Loch of the Lowes osprey, known as Lady of the Loch

The juvenile osprey, which became known as the Lady of the Loch, who was thought to be on the brink of death this week
Photograph: Kevin Hacker/Scottish Wildlife Trust

A water lane running through tall cypress trees covered with Spanish moss on Caddo Lake near Uncertain, Texas. Visitors to this lake tucked away in Texas' forested northeast corner find a mysterious labyrinth of swamps and bayous that are home to a vast array of wildlife – from owls to eagles to alligators
Photograph: Jamie Stengle/AP

Week in Wildlife: A bird cleaning the eye of a rhino while another

A bird cleans the eye of a rhino while another sits on its head at Kruger National Park, South Africa
Photograph: Christophe Simon/AFP/Getty Images

Week in Wildlife: A bird sitting on a branch at Kruger National Park

A bird sits on a branch at Kruger National Park, some 50 miles from Nelspruit, South Africa
Photograph: Pierre-philippe Marcou/AFP/Getty Images

Week in Wildlife: A dolphin swims in the Barataria Bay

A dolphin swims in the Barataria Bay near oil from the Deepwater Horizon spill in near Grand Isle, Louisiana
Photograph: Charlie Neibergall/AP

Week in Wildlife: A group of male chimpanzees attack an adult male from another community

A group of male chimpanzees attack an adult male from another community. The victim is at the bottom of the pile of attackers and hidden from view. Chimpanzee gangs kill to seize new territory, a new study has found
Photograph: John Mitani/University of Michigan

A young adult male, who participated in the lethal attack, leaps on the dead body of the victim
Photograph: John Mitani/University of Michigan

Week in Wildlife: Posidonia Meadows Reflect Pollution Levels in the Mediterranean

Posidonia Meadows reflect pollution levels in the Mediterranean
Photograph: Antonio Tovar-Sánchez et al/SINC

A bee which has been fitted with a tiny radio ID tag to monitor its movement as part of research into whether pesticides could be giving the insects brain disorders
Photograph: Andrew Martin/BBSRC/PA

Week in Wildlife: Stallions fight for their position in the herd in Rauris , Austria

Stallions fight for their position in the herd in Rauris, Austria
Photograph: Kerstin Joensson/AP

The Houbara bustard is a sandy-coloured resident of deserts, with its distribution ranging from North Africa to Mongolia. Females that observed highly displaying male birds in the experiment were more fertile and had a greater breeding success due to an increased allocation of testosterone into their eggs, leading to an increase in the growth rate in chicks
Photograph: Adeline Loyau, UFZ/CNRS

Week in Wildlife: the Botswana Predator Conservation Trust

A caracal walks in the evening light in Ngamiland district in Maun, Botswana
Photograph: Chris Jackson/Getty Images

Week in Wildlife: baby Beluga whale Nala and her mother Aurora at the Vancouver Aguarium

A baby beluga whale named Nala swims with her mother Aurora moments after being born at the Vancouver Aquarium in Vancouver in 2009. The aquarium announced on 22 June that Nala died of a respiratory condition overnight and had been sick for two weeks
Photograph: Andy Clark/Reuters