The next time you spot a sea sponge, say “gesundheit!” Some sponges regularly “sneeze” to clear debris from their porous bodies. It’s “like someone with a runny nose,” says team member Sally Leys, an ...

Scientists have created a new kind of chemical sponge that can shape-shift the size of its pores on command, so you can control when and where it starts absorbing. A sponge is a beautiful, simple tool ...