A Russian environmentalist who campaigned against ecological damage from construction work for the Sochi Olympics is to spend three years in a prison colony, after losing an appeal against his sentence on Wednesday.
Scientists have created a green-glowing zebrafish to monitor ecological damage caused by pollution in real time.
Day in Pics: 24th October
Showbiz World - October 24, 2014
Aamir Khan's sensational 'PK' posters