I was reading another question on this site and it mentioned that bees, at least in the UK, have a barbed stinger.

I remember being told that bees can sting most animals and live to sting another day but when they attack humans their stinger gets stuck since our skin is thicker/tougher.

Surely the presence of barbs on the stinger shows that it has evolved to stay in the target no matter what type of animal and that bees, therefore, can only sting once giving up their lives for the benefit of the hive.

So, the question: are humans the only animal that will cause bees to die after stinging or is it all animals?

There have been several questions on this before so I suggest you check out these answers below

http://www.askabiologist.org.uk/answers … hp?id=4021
http://www.askabiologist.org.uk/answers … hp?id=4163

It is only honeybees in the UK which have barbed stingers, so bumblebees for instance can sting multiply without losing their stinger. There has been some discussion as to whether barbs originally evolved to help stingers gouge into exoskeletons i.e. be used in bee vs. bee assaults.
If a honeybee stings a mammal, the comparitively elastic skin means that when the bee tries to pull away it's stinger becomes embedded and the lower abdomen tears away from the bee. This is not unique to humans and will occur if a bee attempts to sting any mammal.