Is there a way to put multiple types of data in an array in TypeScript?

Here's an example of what I'm asking.
Say that we have two interfaces, Cats and Dogs. How can I make an array that can hold both Cats and Dogs?

interface Cats {
  name: string;
  age: number;
}

interface Dog {
  owner: string;
}

const cat1: Cats = {
  name: "Jimmy",
  age: 5,
}

const dog1: Dogs = {
  owner: "Bobby",
}

// The line below doesn't work how I think it would work
const animalsList: Array<Cats> | Array<Dogs> = [cat1, dog1];

The variable animalsList should be able to have both Cats and Dogs in it, but I am getting errors like
"Type Dogs can not be assigned to type Array<Cats>"

Here is a full sample:

// Welcome to the TypeScript Playground, this is a website
// which gives you a chance to write, share and learn TypeScript.

// You could think of it in three ways:
//
//  - A place to learn TypeScript in a place where nothing can break
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const anExampleVariable = "Hello World"
console.log(anExampleVariable)

// To learn more about the language, click above in "Examples" or "What's New".
// Otherwise, get started by removing these comments and the world is your playground.
  
class Cats {
    private name: String;
    constructor(name: String) {
        this.name = name;
    }
    public dump() { console.log(`I am cat ${this.name}`); }
}
class Dogs {
    private name: String;
    constructor(name: String) {
        this.name = name;
    }
    public dump() { console.log(`I am dog ${this.name}`); }
}

class Test {
    public animalsList : Array<Cats> | Array<Dogs> = Array();
}

const t = new Test();
t.animalsList = Array(new Cats('cat1'), new Cats('cat2'));
t.animalsList.forEach((v, i) => { v.dump(); });

t.animalsList = Array(new Dogs('pluto'), new Dogs('goofy'));
t.animalsList.forEach((v, i) => { v.dump(); });

// The following line fails
//t.animalsList = Array(new Dogs('pluto'), new Cats('cat2'));
//t.animalsList.forEach((v, i) => { v.dump(); });

You can try it on https://www.typescriptlang.org/play