BARCELONA, June 29 (Reuters) - Researchers in Barcelona are trying to "trick nature" by creating an artificial womb for extremely premature babies after tests on animals kept foetuses alive for 12 days. Their artificial placenta prototype recreates a protective environment with a translucent container made of biocompatible material inside which the foetus' lungs, intestines and brain can continue to develop. Babies born after six months of pregnancy or less are considered extremely premature with a high risk of death or disability. It's a challenge, it's extremely delicate to achieve this, to trick nature to make this possible," Gratacos said. "Although it is an exciting development, the artificial placenta is not intended to replace a natural placenta," Werner said.

---

Persons: Eduard Gratacos, Gratacos, Kelly Werner, Werner, Horaci Garcia, Emma Pinedo, David Latona, Andrew Cawthorne Organizations: Reuters, Fundacion La Caixa, Caixabank, Children's Hospital of Philadelphia, Columbia University, Science Media Centre, Thomson Locations: BARCELONA, Barcelona, Spanish