杏吧原创

Far from being civilised, was Peking Man at heart a simple creature, shunning the cold and with only tenuous control over fire? A reconstruction by Noel T. Boaz and Russell L. Ciochon is forcing us to rethink the lifestyle of our famous ance

Health

Well, should we? Even if the rhino itself is at risk? It's the kind of problem that conservation biologists are starting to find increasingly troubling, reports Matt Kaplan