User blog comment:The Reptile King/The Reptile Kingdom/@comment-28530195-20160627012752/@comment-27950421-20160627042122

Interesting. I'm going to have a page on chimera dinosaurs. As a rule of thumb hybrid dinos are an extreme rarity only produced in experiments those that are born are born as part of a breeding project. Individuals who are "wild" are almost never seen because mental instability causes most hybrid dinos to be unsuitable for normal society and the violent ones often need to be put down. They also have strong tendency to give birth to one of their parent species instead of their own and also have a high rate of sterility.

Also due to the sever mental issues most creating hybrids is considered to be inhumane and is heavily regulated some species such as indominus and ultimasaurs are entirely illegal due to the threat they pose to the public.