Ten years. Steve Boyes spent a decade chasing a rumor.
“Ghost elephants.” Massive, nocturnal giants lurking in the remote, high-altitude wetlands of eastern Angola. They were myths until 2024. A motion-sensor camera blinked to life and captured them. Finally, proof. But for Boyes, a National Geographic explorer, a picture wasn’t enough. He wanted lineage. He wanted to know who these creatures were and where they came from.
The dung tells all
He turned to Stanford scientists. Specifically Dmitri Petrov. Petrov led the genomic analysis with Katie Solari and former researcher Jordana Meyer.
The method was unglamorous but effective.
DNA extracted from elephant dung.
You can’t see these elephants. They vanish into the night. So, the team collected feces.
“This was a really great example using non-invasive samples,” Solari noted.
Fresh dung holds secrets. Scientists scrape the outer mucus layer. It functions like tissue. Ideally, it yields elephant DNA rather than just microbial soup, parasite data, or leftover food.
They smashed cells in a machine. Sequenced the genome. Then sent the data to Carla Hoge at the University of Chicago for comparison.
The results? Unexpected.
The ghost elephants don’t match any local populations. Their closest genetic cousins live hundreds of miles south. In Namibia.
That makes no geographic sense. Botswana’s Okavango Delta was the logical bet. It’s closer. The genetics said otherwise.
Henry and the void
Why go to the trouble of collecting blood and tissue from regional elephants later on? To rule out contamination. To ensure the baseline wasn’t just captive animals with murky histories. It wasn’t.
The findings isolated the Angola giants further. They are distinct. Unique.
Boyes has a theory. These giants might be the descendants of “Henry.”
Henry was the largest land mammal ever recorded. Killed in Angola in the 1930s. His remains sit at the Smithsonian.
Could the ghosts be Henry’s kin?
Science says no. Not yet. Henry only left mitochondrial DNA behind—maternal line only. It doesn’t match. More data might bridge that gap eventually. For now, it remains a tantalizing dead end.
Why care?
Identifying individual elephants via poop seems trivial until you consider the stakes.
“The fact that we can see distinct entities is vital,” Petrov argues. No wait. Bad word choice. Essential? Also bad. It’s necessary.
It helps count populations without disturbing them. Non-invasive. Silent.
A lot of these animals are endangered. If you don’t know where they are, you can’t save them. Solari applied this same fecal method to snow leopards in Pakistan. Another ghost species.
At Stanford’s Jasper Ridge preserve, researchers use environmental DNA—genetic traces in air and soil. The principle holds: nature leaves evidence if you know how to look.
Poetry and data
Werner Herzog filmed this quest for a National Geographic documentary.
Petrov didn’t just provide data for the film; he debated its meaning with Herzog and Pavle Levi after a campus screening. Data versus story. Fact versus poetic truth.
“It added poetry to the process,” Petrov said.
Science solves puzzles. One disappears; another appears. The ghost elephants trace back to Namibia instead of neighboring regions. Why?
That is the new question. And honestly? That is fun.
