Where do we come from? Why are we the way we are? Why aren’t there any 6-legged mammals? In this short video, Yogi Jaeger, head of the Comparative Analysis of Developmental Systems lab at the Centre for Genomic Regulation (CRG) talks about his research into these and other questions.
The path to life of the zebrafish
This picture of the department of Histology and Bioimaging of the CRMB shows different stages of Zebrafish embryonic development using a confocal laser microscope. The actin is stained red and in blue the yolk, which feeds the developing embryo. The phases are fist one cell, then two cells, four, and finally the result 48 hours after fertilization.