So I have had the Grey boars for awhile now -up to gen 6. Just got a pair of wild caught warthogs though. They bred fine. Result was 3 female and 1 male piglets. They grew up and all the females were pregnant. 2 of the 3 have had their piglets so far for a total of 7 babies. EVERY SINGLE PIGLET is MALE!!! What are the chances? And of course they are super aggressive so I had killed the 2 females that had given birth to be able to see the babies better. So I am now left with 1 pregnant warthog sow, that I am HOPING will give me a female piglet!!
According to the wiki and my experience with the grey boars/sows it is skewed in favor of females so I am just shocked!