Cone snail deploys insulin to slow speedy prey
Attacked fish turn into sitting ducks as blood sugar drops
![extendable funnel-shaped mouth tube of the cone snail](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/01/sm_12-sec_Screen-Shot-2015-01-16-at-5.05.jpg?fit=860%2C460&ssl=1)
SECRET WEAPON The extendable funnel-shaped mouth tube of the cone snail Conus geographus engulfs live fish with some help from weaponized insulin produced by the snail.
Courtesy of Jason Biggs and Baldomero Olivera