Collection of similar objects?

Let's say I have a bunch of classes that inherits the "Animal" class (using a simple example so it's easier to explain)...

All my classes (ex: Gorilla, Dog etc..) have the Growl() method...

Is there a way I can hold a list or collection of "animals" (no matter if it's a dog or a gorilla) so I can do something like

animalList.Add(new Dog());
animalList.Add(new Gorilla());

and then call animalList[0].Growl();

Again, sorry for the stupid example, but I thought it would make my question easier to understand :)

I don't really mind if I have to use a Collection or a List or any other type of collection... as long as I can add different (but similar) objects to it, and call common methods on them...

You can use generic collection as the List
for example:

Code:

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List<Animal> animals = new List<Animal>();
animals.Add(new Dog());
animals.Add(new Cat());
foreach(Animal a in animals)
a.DoSomething();

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Awesome, thanks! Exactly what I needed...