Originally posted by Conan:

a animal ALWAYS have the equal (100%) child, a boar has a boarchild, a boar* has a boarchild* and a boar** has a boarchild**, this internet fakenews with 50% is ....fakenews

Not in my experience. I had a boar pen with all 1 star boars and they still produced normal boars sometimes. Its not 100% unless I'm missing something.