Archerfish mouth is the secret of precision spit

Shooting gobs of water at targets requires quick changes and fine control

archerfish spitting

SPIT POWER  An archerfish can weaponize water into a high-impact blob thanks to subtle variations in its mouth opening. 

Ingo Rischawy (Schuster lab, University of Bayreuth)

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When archerfish hunt by precision spitting water into the air, they do a lot more with their mouths than put their lips together and blow.