"She's been making recordings of the calls"


Elephant with Eyelashes
Creative Commons AttributionElephant with Eyelashes - Credit: Doug Wheller

The researcher Oskar refers to here is Katy Payne, who published her findings on the infrasonic communications between elephants in her book Silent Thunder. You can listen to her talk about the research on this link.

The Elephant Listening Project


Elephants do indeed shed tears, but it is not yet known if they do so only to remove irritants or as an expression of emotion. Another theory is that their lachrymal glands produce salty water in order to balance sodium levels in the body.