I was watching this video recently (https://youtu.be/XAd1DlE7eaU) and in the first few minutes, he mentions something about the robin rotating the eggs under it so the heat distributes evenly. This make me really think.
How do these animals understand the incubation process? How can it understand something complex like knowing how often to rotate the eggs, or even comprehend it needs to rotate them in the first place? Does this suggest that knowledge is passed down through genetics?