Esposito’s team developed a method for plugging nanoscopic holes such as this one, which is a fraction of the width of a human hair.

An orca strikes a shark in the belly. Image by Marco Villegas. Image owned and provided by Marco Villegas and must be credited to him. Disclaimer: AAAS and EurekAlert! are not responsible for the ...

An orca swims next to a shark with a visible wound. Image by Marco Villegas. Image owned and provided by Marco Villegas and must be credited to him.

These images are owned and provided by Marco Villegas and must be credited to him. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by ...

Adam Lentz, a Ph.D. student in the DuBois lab at UC Santa Cruz, led a project to better understand the structure of human astroviruses.

From left to right - the cell in the initial frame is from a 55-year-old donor heart. The next image shows the cell rounding up after receiving Cyclin A2 and the cell division takes place shortly ...