`Animal::talk(self)` is shorthand for `<Self as Animal>::talk(self)` - i.e. it calls the overridden method. If you want to reuse the supertrait method, you have

`Animal::talk(self)` is shorthand for `<Self as Animal>::talk(self)` - i.e. it calls the overridden method. If you want to reuse the supertrait method, you have to implement it as a generic method outside of the trait, and call it from the default implementation: pub fn super_talk<T:Animal>(this: &T) { println!("{} says {}", this.name(), this.noise()); } trait Animal { //... fn talk(&self) { super_talk(self) } }