Drawhat Weav on Twitter: "Thanks @mattchew_draws for this adorable #Commission of Carl and Adelaide playing together. If that stethoscope was real, I'd imagine that Carl would be hearing quite the crazy fast
Bubble Guppies - Heartbeat - YouTube
Cause & [Effect] Goes Under The Sea With Dora The Explorer For Nickelodeon | LBBOnline
4D Ultrasound Heart-Shaped Sound Box with Recorded Baby's Heartbeat