LifeTraumatic beetle sex causes rapid evolutionary arms race Male seed beetles use sharp spikes on their penises to damage females during sex, but females are evolving thicker tissue to resist them 51¶¯Âþ
LifeMud DNA means we can detect ancient humans even without fossils We can now look for ancient human DNA at sites with no bone remains – and perhaps confirm claims such as that humans were present in the Americas 130,000 years ago 51¶¯Âþ