The possum was not discovered until 1867 and was originally known only through five specimens , the last one collected in 1909 .
The possum was first discovered by Europeans in 1867 . Only five possums were found , the last one in 1909 .
The possum was first discovered by Europeans in 1867 . Only five possums were found , the last one in 1909 .
Simplify the sentence: The possum was not discovered until 1867 and was originally known only through five specimens , the last one collected in 1909 . Output: