Finding Dory that cried out to be made." Conservationists warned that, very much like "Finding Nemo", the film could lead to uninformed customers buying blue tangs for home aquariums. Blue tangs cannot be bred in captivity and have to be caught in the wild. They are related to surgeonfish and exhibit razor-sharp spines on both sides of the tail that can inflict formidable wounds. While promoting the film, actress Ellen DeGeneres reminded audiences that Nemo and Dory's real-life home, the Great Barrier Reef, is under enormous threat, mostly due to coral bleaching, a process induced by climate change, which has killed coral
Forgetful functor of formal logic, a functor of the first kind removes axioms. The second kind removes predicates. The third kind remove types. An example of the first kind is the forgetful functor Ab → Grp. One of the second kind is the forgetful functor Ab → Set. A functor of the third kind is the functor Mod → Ab, where Mod is the fibred category of all modules over arbitrary rings. To see this, just choose a ring homomorphism between the underlying rings that does not change the ring action. Under the forgetful functor, this morphism yields the identity. Note that