I’m naked as we speak.
Oh, wait. You said “naturalist”…
There are a couple of dogs at the local hardware store. I was there a couple of months ago, and a customer wanted to duct (you wouldn’t believe the typo I just made! 
) tape. The woman at the store told the dog to get some duct tape, and the dog – some kind of Labrador, I think – went and got a roll. The customer said that was impressive, but he wanted two rolls. The hardware store woman said, “Two rolls” to the dog, and she (the dog) went for another.
I once had a cat, Justin, who was so “stupid” that if he went into the neighbor’s shed he couldn’t figure out how to get out and come home. After a day or two of not seeing him, we’d go in there and there he’d be… waiting to be rescued…
His housemate was so smart she had figured out how to get outside by opening a kitchen cabinet and going in through some hole she had found. And, she came when I whistled.