I received your question re the chapter on animal models. It seems as if the deadline for the chapter has passed? If not do you want to do this as a collaborative chapter? I would have some time in the next few weeks if that is what you have in mind.
It would be best to communicate with me through my university email:
I am very sorry but could you write your precious paper until end of April?
I should send all chapters to Springer Nature before the deadline.
I look forward to hearing you.
Do you want I write a chapter on Animal models of depresion?. Available from: https://www.researchgate.net/post/Do_you_want_I_write_a_chapter_on_Animal_models_of_depresion [accessed Apr 4, 2017].