觅食的核心，是一个所有能移动的生物体都要面临的永恒难题： 是充分利用现有资源，还是去探索潜在的更优资源。 这一问题极其根本，以至于大脑最初就是为解决这一问题而进化出来的，也从那时起，便不断围绕这个主题进行复杂化发展 [4]。

Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States Post-transcriptional mechanisms, such as alternative splicing and ...

1 Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, United States 2 Division of Infectious Diseases, Department of Medicine, Columbia ...

This important study presents work on the molecular mechanism driving asymmetric cell division and fate decisions during embryonic development of echinoids. The evidence supporting the claims of the ...