In a groundbreaking study published last month, researchers showed that elephants have unique names for one another. Now, in a follow-up, they’ve also showed that elephants use verbs. “If they are using noun-verb combinations together, that is syntax. That is language,” the lead author says. In the vast landscapes of Etosha National Park, Namibia, most animals keep an eye out for bull elephants. From 2005 to 2017, another group was also tuning in, listening to every sound the elephants would make. This was a human group led by Caitlin E. O’Connell-Rodwell at Stanford University. They used high…