Palm oil plantations.
More than 9 million acres of Indonesia's forests have been destroyed to produce palm oil, according to a Yale University report, and all that land clearing has rid endangered tigers, primates and elephants of their habitat.
When these creatures destroy crops and wander into villages, they're often exterminated.
This 18-year-old female elephant appears to be the latest casualty.
According to Indonesia's Antara News, it was found dying by the roadside -- apparently poisoned -- by a palm oil plantation.
It gets sadder: the dead elephant's saddened child, the Jakarta Post reports, was found trying to wake up its mother.
According to AFP, the WWF environmental group has pushed Indonesia's government for a full investigation.