Neandertal teeth reveal the earliest known signs of lead exposure
Chemical analyses provide more clues about the environments our ancient relatives lived in
![Neandertal teeth](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/11/110218_jl_neadertal_feat_REV.jpg?fit=860%2C460&ssl=1)
FILLING THE GAPS Analyzing the fossilized teeth (one shown) of two young Neandertals could provide a window into the environmental dangers the ancient hominids faced.
T.M. Smith/Griffith Univ.