I owned quite a number of pets in my life, so I don't need explaining that they do have some kind of relatively high-order intelligence that allows them to do quite a lot of things. Yet, this is clear that no kind of animal on Earth but us exhibits potential to have capabilities to spread themeselves beyond home planet once it becomes uninhabitable. Moreover, signs show that once a type of species finds their niche, their intelligence levels off and does not tend to increase. In other words, modern crocodiles are no smarter than crocs from 10 millions of years ago, because they are doing mostly fine as they are.