I was just reminded of this by a conversation, so, hey, does everyone know about the sparrows that have four sexes now?

The sparrow with four sexes - Nature

Elaina Tuttle spent her life trying to understand the bizarre chromosome evolution of a common bird — until tragedy struck.

📌

whoah

They're one of our early migrants. It seems like almost every bird in the woods is a white-throated for a couple weeks.

I didn't!