In the 19th century the anatomy of the eye was known in great detail and the sophisticated mechanisms it employs to deliver an accurate picture of the outside world astounded everyone who was familiar with them. ↗
I took anatomy classes. I went to medical libraries and talked to doctors and nutritionists. I did the whole thing before using myself as a human guinea pig. ↗
I put a bullet into the back of the crocodile's neck just behind the head, thus killing it. If a crocodile is hit in any other part of its anatomy it disappears into the water and is irrecoverable. ↗
In my experience of these things, parties which shout about dirty tricks and the like tend to do so because they fear a direct hit in some vulnerable part of their political anatomy. ↗