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Science  13 Apr 2012:
Vol. 336, Issue 6078, pp. 136-138
DOI: 10.1126/science.336.6078.136-c

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A new tool is available to help doctors detect signs of Alzheimer's disease. According to a paper published online this week in Animal Conservation, since 2004, the population of the critically endangered Raso lark has skyrocketed from 65 to 1490. In the April 2012 issue of Sky & Telescope magazine, physicists note that a powerful spring tide may have helped push icebergs into the path of the Titanic. And this week's numbers quantify the percentage of NASA missions being extended and the number of species researchers should inventory over the next 50 years.