Brent Stapelkamp, from the Oxford University Wildlife Conservation Research Unit, told the BBC's Alastair Leithead that he had found the international reaction to the killing as "overwhelming".
Angel Di Maria admits his season at Manchester United "did not go well" as he joins Paris St-Germain for £44.3m.
Three European bottlers of Coca-Cola merge in a move designed to cut costs as consumer buy fewer fizzy drinks.
Stuart Broad takes 8-15 as England bowl Australia out for 60 before opening up a 214-run lead in the fourth Ashes Test.
Researchers in the US have used artificial intelligence to better understand the military strategy of Islamic State in Iraq and Syria.
A Kenyan man with a brain tumour uses a Twitter appeal to raise $60,000 in two days towards his treatment in India.
Remains found at the foot of Switzerland's Matterhorn glacier are identified as two Japanese climbers who disappeared 45 years ago.
A Sudanese migrant was stopped inside the Channel Tunnel walking towards the British entrance, according to Eurotunnel.
Hundreds of migrants rescued from a vessel carrying around 600 of them that sank off Libya on Wednesday arrive on the Italian island of Sicily.
Leicester City face a tougher task to stay in the Premier League this season than last, says manager Claudio Ranieri.
Zimbabwe conservation group plans to erect a bronze statue in memory of shot Cecil the lion at the entrance to the park where he lived.
The US government announces that it will pay $5m (£3.2m) for information leading to the capture of fugitive Mexican cartel leader Joaquin Guzman.
A ceremonial flotilla sailed down the Suez canal to mark the inauguration of a 35km (21m) extension to the waterway.
Poland's new President, Andrzej Duda, is sworn in following his surprise victory in May, with his inauguration signalling the beginning of a political shift, correspondents say.
A Swedish airline pilot had to prise open a toilet door with an axe, after a drunk passenger refused to leave the cubicle.
World number one Rory McIlroy shares video of him hitting a drive, increasing speculation he may play in the US PGA.
From cattle to kola nuts - find out the price of marriage in Africa
Relatives of those missing on flight MH370 vent anger at apparent mixed signals over whether part of the plane has been found.
In Africa, some say that the 3D printer could bring a new industrial revolution, allowing goods to be made with less dependence on imported commodities.
A Stradivarius belonging to violin virtuoso Roman Totenberg is recovered by the FBI, 35 years after it disappeared