image: A great reed warbler warning from the top of the reeds at an intruder visiting the nest. Great reed warblers are very aggressive at the nest when chicks have hatched. The parents may even hit the head of a human when visiting their nest. This material relates to a paper that appeared in the Jan. 23, 2015, issue of Science, published by AAAS. The paper, by M. Asghar at Bulgarian Academy of Sciences in Sofia, Bulgaria, and colleagues was titled, "Hidden costs of infection: Chronic malaria accelerates telomere degradation and senescence in wild birds." view more
Credit: [Credit: William Velmala]