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Seth Mnookin wrote an incredible piece on addiction, the omnipresent threat of relapse & Philip Seymour Hoffman’s death

Jason Goldman superbly analyses why Copenhagen Zoo decided to euthanise Marius the giraffe: a “surplus animal”

This is almost certainly the best photo I will ever take of a pelican.

The ancient genome of a Native American boy stirs an ethical debate about handing of tribal remains. Great reporting by Ewen Callaway.

Brilliant! Anti-“Daily Mail” signs appear all over UK’s rail network

Carl Zimmer on a fascinating condition where people hallucinate music

A fascinating tour through research into arachnophobia. By Gwen Pearson.

Emily Willingham deconstructs the