At a glance: New study reveals that heart cells in zebrafish start beating suddenly and all at once to form a synchronized heartbeat. In developing zebrafish hearts, each cell can beat on its own, and unlike in an adult heart, the heartbeat isn't coordinated by specialized pacemaker cells. Studying the basic biology of the heartbeat could help scientists understand cardiac rhythm disorders in humans. Becoming a full-fledged organism out of a handful of cells, complete with functioning tissues and organs, is a messy yet highly synchronized process that requires cells to organize themselves in a precise manner and begin working together.

https://www.miragenews.com/zebrafish-heart-cells-begin-synchronized-1093157/

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