Monkeys at Bukit Timah Nature Reserve

It has been quite a long time since my last visit to Bukit Timah Nature Reserve.  Decided to take a walk in this beautiful reserve this afternoon.  The nature reserve seems to be a bit exhausted these days.  Signs of landslides, and tree falling down are more than what I had seen before.  Anyway, I was greeted by a group of resident monkeys in the nature reserve, and there are many young monkeys playing in the trees.  What does it mean?  Does more young monkeys mean they now have an expanded family and the environment is conducive? Or most of the old ones have died as they can adapt to the modern living?  I don't know.  For now, let's share the happy moments with the young monkeys :)