I recommend William Bialek's lectures who deep dives into how maths can be applied to messy macro-world of biology, neurons, cells, birds, so on and so forth.

I recommend William Bialek's lectures who deep dives into how maths can be applied to messy macro-world of biology, neurons, cells, birds, so on and so forth. Precision and emergence in the physics of life with William Bialek https://www.youtube.com/watch?v=c1hd5El2gqc https://www.youtube.com/watch?v=c1hd5El2gqc