This rare glimpse into the beating heart of a zebrafish offers a view of how blood flows into and out of its heart. Zebrafish have a heart and a circulatory system similar to that of humans, but with ...

A heart attack will leave a permanent scar on a human heart, yet other animals, including some fish and amphibians, can clear cardiac scar tissue and regrow damaged muscle as adults. Scientists ...

However, microscopic imaging revealed subtle effects, including increased eye distance and an elevated heart ... zebrafish. Not only was heme affected, but the researchers also saw decreased ...

Researchers, policymakers, and innovators around the world are taking steps to tackle the problem at its source. Scientists ...