Cool post! Thanks for writing it. Dogs are really cool animals, and I'm especially fascinated by their smell. On my university, there is an ongoing study where they are working on training dogs to smell cancer cells! This could potentially let us use dogs to detect cancer in its early stages, which could save lots of lives!

Anyway, I just want to clear up a small misconception while I'm here; dogs are not actually colorblind. The reason as to why the see fewer colors than us humans is because they only have 2 cone cells in their retina, while we have 3 of these cells. This is just like the people with red-green colorblindness in humans, but because it's normal for dogs to only have one cone cell, it is not color blindness (which is a disease), but just their normal vision.

And again, thanks for writing this post! I enjoy your animals TILs :)