Please make sure you own the Sims 4 Expansion Packs

For the animals you only the Sims 4: Cats and Dogs

For some Objects you need Sims 4: My first Pet Stuff. You will see an green icon in the picture when you need this Expansion Pack.

Install Animals without CC:

Download the Zip-File and unzip it in your Tray Folder

Documents/Electronic Arts/The Sims 4/Tray

The animals will show up in your Gallery!

Install Animals with CC:

Download the Zip-file and unzip it. There will be a Mods Folder and 5 files.

Put the 5 files in your Tray Folder.

Documents/Electronic Arts/The Sims 4/Tray

And the package-files in the Mods folder in your Mods folder!  

Documents/Electronic Arts/The Sims 4/Mods

The animals will show up in your Gallery!

Don`t forget! Enable Costum Content in the Gallery, without it the animals will not show up!

Make sure your Custom Content is enabled:

Press ESC - Options - Other. From there, select Enable Costom Content and Mods.

Install Mods/ Packages:

Download the package-file and put it in the Mods folder.

Documents/Electronic Arts/The Sims 4/Mods

Make sure your Custom Content is enabled:

Press ESC - Options - Other. From there, select Enable Costom Content and Mods.