[robwwilliams]

They have not. And now not possible due to justified animal welfare concerns.

Hans-Peter Lipp and colleagues have studied domestic mice reared and maintained in a large outdoor pen. I could only find this reference:

https://pubmed.ncbi.nlm.nih.gov/21454292/

[hoseja]

>justified

How about yall stop factory farming first. But I guess a curious slightly mad scientist is an easier target than an agrocorporation, the guy probably won't feed you to the hogs.

[autoexec]

Scientists and universities with ethics put rules in place to prevent unethical behavior. People without ethics work for Tyson Foods and torture chickens for extra money.