Lightning never strikes the same place twice, or history always repeats itself? Unfortunately in the case of vultures, nature's "clean-up" crew, the latter applies -- with African populations of these useful birds facing catastrophic declines -- just as their South Asian counterparts did in the 1990s. Patricia Zurita and Bradnee Chambers explain the importance of protecting vultures, whose vital ecological role has a direct bearing on human health.

13 October 2015