Fossey, named after Diane Fossey, was truely an amazing gorilla, the son of Bongo and Bridgit and the only half sibiling to Colo's offspring. He was the first gorilla born in captivity to be raised by his parents. Before him it was common practice to raise baby gorillas in a nursery like human babies. When he was 16 months old his mother suddenly died and he was then raised soley by his father, which at the time was unheard of. I have observed him several times over the years showing an extereme amount of tenderness and closeness to both his offspring, much more than most silverbacks do. I'm sure that came from being raised by his father.
This loss leaves the family group, Sekani, Adelina (3yr), and Catherine (infertal) without a breeding silverback. There is another silverback , Brutus, at Little Rock, but according to the keepers he was raised by humans and will not have any thing to do with other gorillas. He currently lives with Trudy (age 58). I've never seen the two interact, they just tolerate each other.
Incendently, according to the keepers, Trudy is reconized as the second oldest gorilla in captivity. Second only to Colo in Columbus. Colo is reconized as the oldest because being the first born in captivity her exact birth date is known. Trudy was wild born and captured in June 1957 at which time she was estimated to be 5-7 months old which makes her born about the same time as Colo. So, she may be older or younger, no one knows, but the third oldest (in Germany, I think) was born a year later.
Fossey will be missed here by those of us that love gorillas.
Here's a link reporting the death.
http://http://www.arkansasonline.com/news/2015/aug/11/silverback-gorilla-lr-zoo-dies/
Here's a link to a video of Fossey playing with Sekani and Mosi, his first born, around 2008.
http://https://www.youtube.com/watch?v=RCPx8xBc_dA