On the brink

THERE ARE THOUSANDS OF SPECIES THAT ARE IN DECLINE

This map shows some of the results from a study of 29,400 species of terrestrial vertebrates (animals with spines), outlining the distribution of 515 species that are on the brink of extinction, with less than 1,000 individuals seen on this map. The colour chart indicates the number of species in a 38-square-mile global cell grid.