How hydras know where to regrow their heads
![Hydra vulgaris](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/02/029817_ht_hydraticker.jpg?fit=860%2C460&ssl=1)
A new study suggests that stretchy skeletal structures play a crucial role in helping hydras (Hydra vulgaris shown) regrow their heads in the right place.
Proyecto Agua/Flickr (CC BY-NC-SA 2.0)
A new study suggests that stretchy skeletal structures play a crucial role in helping hydras (Hydra vulgaris shown) regrow their heads in the right place.
Proyecto Agua/Flickr (CC BY-NC-SA 2.0)