I'm not surprised. Because I like to try out many things in order to gain firsthand perspectives, I tried veganism for a year back in 2003. It was the first time I grilled a portobello mushroom. My system was so completely cleared out of any animal products after many months (including honey) that I was absolutely shocked when I bit into its meaty flesh and was overwhelmed with a sentient connection that went beyond a simple similarity in texture, as it was very obvious to be animal in nature. As I was working at the San Diego Natural History museum at the time, I consulted with the librarian and found that mushrooms do indeed carry a combination of both plant and animal DNA.