Published Nov 6, 2026 12:47 PM EST Scientists have a new tool in the fight to save Earth’s endangered coral reefs and it’s something many moms-to-be know all too well: the ultrasound. This week, veteran camera-maker Canon announced its high-tech ultrasound platform can scan living coral submerged underwater and detect eggs developing inside them. Until now, checking whether coral was carrying eggs typically required cutting it open.