Learn how scientists from the Great Elephant Census project are conducting aerial surveys across millions of square kilometers to obtain accurate elephant census data. This HHMI BioInteractive expands on the coverage of the Great Elephant Census in NATURE: "Naledi: One Little Elephant." Conservation groups estimate that as many as 100 elephants are killed each day, so it is critically important to determine how many elephants remain and where they are.

For more from NATURE, check out the collection page or the NATURE Naledi page.