Not a nature subject as such, but showing apparently biodegradeable products.
Teabags - the dip/string variety that the other half uses in bulk.
These were put in the compost bin well over four years back and are now at the base with the good stuff that I'm growing potatoes in.
As you can see the skeleton is intact and worse still it continues to keep the leaves inside. I could probably make a brew with the remnants.
The choice now is to sift through the whole bin and add to landfill, or put in the wood burner.