>>11788988Dinosaur is a large amount of species but overwhelming majority of them are cold alright.
Point is, they are lying bastards.
Their hollow bones and large air sacs outright reduces every shock that their body suffers as they continued to grow.
Larger as they come, they are bound to lose against the much nimbler mammals.
Even if the Meteor never fell, evolution would favor the one who can adapt the best and mammalians high metabolism, high reproduction, and higher sensitivity/intelligence would ensure that they would always find a way to outcompete the large retards.
It would take longer of course but there is a reason why the giant reptiles were unable to make a comeback.
