Kelo

These dead pine trees are common in Finnish forests and are a unique phenomenon for this latitude.

The Northern (or Scots) pine trees themselves can live for up to 800 years, but if conditions are right and they die slowly, they can be preserved and stay standing for a thousand years, before falling down and taking another thousand to rot.

The scientists are puzzled about this as the tree appears to deliberately infuse its wood with natural preservatives in its later life. But for no apparent evolutionary benefit! If you kill a tree it just rots and falls down in a very short period of time - especially as many trees here live in Mires or bogs.

But given the right conditions and a slow natural death, it almost seems that they can almost stay standing forever!