! T: j* f- W3 G7 p4 nBursts of neural activity in an entire larval zebrafish 4 U# ]; o6 ~% v/ v% z
brain expressing a calcium reporter in every neuron. Two different time points . G0 q! R* x, U' l7 }4 u
are shown in red and blue. Image by Philipp Keller, Misha Ahrens and Kristin % ~+ a- Y5 a* s% T% T7 IBranson (Howard Hughes Medical Institute, Janelia Farm Research Campus). 8 [6 t! x+ a$ Z7 S# L