self-fertilization

Science Magazine this week published the winners of this year's International Science and Engineering Visualization Challenge. Self-Fertilization: Heiti Paves and Birger Ilau, Tallinn University of Technology Within its tiny white flowers, thale cress (Arabidopsis thaliana) does what most plants avoid: It fertilizes itself. Heiti Paves of Tallinn University of Technology in Estonia took this photograph of the flower with its pollen grains and ovaries stained blue to show the process in action. From the six pollen heads, the grains grow thin tubes toward the bean-shaped ovaries in the flower…