Why aren't there more blue animals?

[Catherine]

Blue is an uncommon colour. There are few blue foods either. 
So you have chosen the rarest colour as your favourite.
I like green, but that is a whole set of colours so I prefer yellow greens and blue greens, but not so much true green.

Do the blue hair. It would be fun and amazing. They have dyes that wash off and it will just become a lighter shade over time.
You could just do some streaks of blue. If my hockey team wins the Stanley Cup or at least gets into the final games, I am going to get streaks of the team blue put in my hair. They haven't won in 50 years so I am probably safe. 

I can't do my hair green because it fades to a nasty colour. I did ask. 

Dogs see things more blue. Interesting. I wonder how that difference changes life for them. They would never have hunted blue food. There are so few blue things.  There must be some benefit.