just seen on meridian news an item on a western lowland gorilla that reached her 50th birthday(equivalent to 100 in human years).
apparently they average about 35 at best in the wild, she has had 8 children and is now a grandmother so she has done her best to keep the specie less endangered.
she clearly enjoyed ripping the paper off of her presents anyway.
just looked at the video on kent online, she seems as enthusiastic as a youngster demolishing the wrapping paper around her presents, hopefully she will be around for a time yet.