evolution

Earliest interbreeding event between ancient human populations discovered

The new study goes back further than 23andme could have ever imagined.


The role of lizard lungs in evolutionary biology

Savannah monitor lizards have a unique airflow pattern that is a hybrid of bird and mammal flow patterns.


Sex, lice and videotape

Biologists drove the divergence of different-sized feather lice from a single population. In four years the evolved lice had trouble mating with each other, a sign of speciation and they caught it on tape.