hand reared by staff at bristol zoo is celebrating his first birthday reunited with them. it s been a rocky start for the western lowland gorilla who was abandoned by his mother when he was just a few days old. natasha turney has been to meet him. he s just had a bit of a birthday lunch outside but has now headed back into the inside area to have a rough and tumble with his mum. hasani s first birthday is today. we first met him a year ago when he was born and cuddled up with his mother. but he has had a bit of a rough journey since then with the keepers on hand to help him on the way. you have been there throughout it. tell me what has happened. it has been an interesting year, let s say, a challenging year for all of us and hasani. when he was first born, he seemed to be doing very well. his mum seemed to be coping very well. but over the first four to five weeks we saw a bit of a deterioration in his condition, he was looking a bit weak,