I've just been reading an article which is in my area in which the authors essentially put down another author's contribution in order to publish their own paper which claims to be an "improved synthesis". This takes me back to the bad old days of science. This is petty and is the worst science brought about by either the need for adulation or worse the need for some sort of oneupmanship (please excuse the term). What makes this worse is that the later paper relies on the insight of the first author. Science is about gaining knowledge and sharing so my message to all students is simple - never put someone else down in order to look good yourself! Anyway the science editor in charge should stamp out this behaviour.