Title: The Gut’s Whisper
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Description: In the translucent depths of this 7-day-old larval zebrafish, a silent conversation unfolds between the gut and the brain. The red sensory cells deep within the gut, marked by the Tg(neurod1:RFP) transgenic line, detect nutrients and whisper their findings to the brain. Green threads of motor nerves, labeled by Tg(isl1:GFP), wind through the face, poised for action. Captured using a Leica SP8 two-photon microscope, this image reveals the intricate dance of communication driving the fish’s instinctual quest for sustenance–a delicate balance of signals and responses that sustain life, hidden beneath a veil of transparency.