CATCHING Z’S While sleeping, this Australian dragon (Pogona vitticeps) shows brain wave patterns similar to those of slumbering birds and mammals.
Stephan Junek/MPI for Brain Research
MONKEY TALK The vocalizations of gelada monkeys follow a mathematical principle seen in human language, shedding light on language evolution, new research suggests.
Thore Bergman/Univ. of Michigan
FAMOUS FINCH Medium ground finches (Geospiza fortis, shown) underwent a shift from big beaks to small ones following a drought. Most of that shift was traced to big- and small-beak variants of a gene called HMGA2.