Robot fish shows how the deepest vertebrate in the sea takes the pressure
Goo inside this snailfish keeps its flimsy body from being squashed
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/01/122117_SM_snailfish_feat.jpg?fit=860%2C460&ssl=1)
ROBO-FISH Tests with this robot snailfish, whose shape came from photographs of a real fish snapped from different angles, reveal why the deep-sea fish has a mysterious goo in its body.
Stacy Farina and M. Gerringer/Friday Harbor Labs/Univ. of Wash.