The week in wildlife – in pictures

Sea turtles, kingfishers and butterflies are among the pick of this week’s images from the natural world

This week the British and Irish Association of Zoos and Aquariums (BIAZA) announced that Lemur leaf frogs are avoiding extinction with the help of zoos.
Lemur leaf frogs, above, are avoiding extinction with the help of zoos, the British and Irish Association of Zoos and Aquariums announced this week. Photograph: Tim Skelton/Bristol Zoo Gardens/PA
At the US Open Tennis Tournament a wasp stopped play as it circled Japanese player Kimiko Date-Krumm, Japan, during her match against Venus Williams.
A wasp stopped play at the US Open as it circled Japanese player Kimiko Date-Krumm during her match against Venus Williams. Photograph: Tim Clayton/Corbis
A baby sea turtle crawls to the sea after being released by members of Orange House conservation project in El-Mansouri near Tyre, south Lebanon.
A baby sea turtle crawls to the sea after being released by members of Orange House conservation project in El-Mansouri near Tyre, south Lebanon. Photograph: Ali Hashisho/Reuters
David and Goliath? A buffalo bull head butts a baby elephant in Addo Elephant National Park, South Africa.
David and Goliath: a buffalo bull headbutts a baby elephant in Addo elephant national park, South Africa. Photograph: Conrad Cramer/Barcroft Media
Workers fumigate Yoyogi Park, Tokyo, Japan, after three people were diagnosed with dengue fever, a disease carried by mosquitoes. These were the first domestic cases of dengue fever in Japan in 70 years.
Workers fumigate Yoyogi park, Tokyo, Japan, after three people were diagnosed with dengue fever, a disease carried by mosquitoes. These were the first domestic cases of dengue fever in Japan in 70 years. Photograph: Chris McGrath/Getty Images
A rhesus monkey carries her baby on her back at the Hlawga National Park, in Mingaladon, near Yangon.
A rhesus monkey carries her baby on her back at the Hlawga national park in Mingaladon, near Yangon, Burma. Photograph: Ye Aung Thu/AFP/Getty Images
Two common kingfishers fight over a perch near Dal Lake in Srinagar, Indian administered Kashmir.
Two common kingfishers fight over a perch near Dal Lake in Srinagar, in the state of Jammu and Kashmir, India. Photograph: Shams Ul haq Qari/Barcroft
A stray cat stands on part of the remains of Al-Basha, a building that was destroyed by an Israeli air strike in Gaza City this week.
A stray cat stands on part of the remains of Al-Basha tower, destroyed by an Israeli air strike in Gaza City this week. Photograph: Mohammed Abed/AFP/Getty Images
An African Land snail (480g) stands on a scale during London Zoo's annual animal weigh-in.
An African land snail (480g) placed on a scale during the London zoo’s annual animal weigh-in. Photograph: Piero Cruciatti/Demotix/Corbis
Red squirrels tussle over a nut in Elizabeth Forest Park, Scotland.
Red squirrels tussle over a nut in Elizabeth forest park, Scotland. Photograph: Ed Brown/Rex
Water Hyacinths are clogging the Buriganga River in Dhaka, Bangladesh, making the river difficult to navigate in parts.
Water hyacinths are clogging the Buriganga river in Dhaka, Bangladesh, making the river difficult to navigate in parts. Photograph: Abir Abdullah/EPA
Swans were spotted this week in Bristol's city centre.
Swans feeling at home in Bristol’s city centre. Photograph: Ian Wade/Barcroft Media
A mother and baby Indian one-horned rhinoceros wade through flood waters at a submerged area of the Pobitora wildlife sanctuary in India's northeastern Assam state . About 80 percent of the sanctuary is currently under flood waters caused by the overflowing Brahmaputra river.
A mother and baby Indian one-horned rhinoceros wade through flood waters at a submerged area of the Pobitora wildlife sanctuary in India’s north-eastern Assam state. About 80% of the sanctuary is flooded by the overflowing Brahmaputra river. Photograph: Biju Boro/AFP/Getty Images
A butterfly flies around flowers at Nanhu Park in Shenyang, China.
A butterfly on a flower at Nanhu park in Shenyang, China. Photograph: Xinhua/Landov/Barcroft Media

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