One of the objectives of the ongoing Catch 'Em All Challenge is to own five rabbits in the game. To do this, you can buy rabbits from the Pet Store or Adopt them from Animal Shelters.
How to buy rabbits from the Pet Store
To buy rabbits from the Pet Store, you must first get access to them. You can access almost every single menu or activity option after reaching 18 years of age. Once you can access the Pets menu under the Activities tab, open it and click on the Pet Store button. Now, browse the list of animals and choose a rabbit. The rabbit should cost somewhere between 10$ and 50$. Pay the money from your bank account, or borrow cash from your parents or siblings if you are not working. After purchasing, you can name your rabbit and induct it into your list of pets.
Related: How to own cats in Bitlife
How to adopt rabbits from the Pet Store
If you are not fond of buying animals, there is always an option to adopt animals from the Animal Shelter. You can find the Animal Shelter menu under the Pets section in the Activities tab. Click on it and choose a rabbit to adopt. Sometimes, you will fail the interview process related to adoption. In such instances, age up and revisit the Animal Shelter the following year. With time, you will pass the adoption if you keep on trying. Once you have passed the interview process, you will get the rabbit as a pet for a few dollars.
Repeat this process of either buying or adopting rabbits from the Pets section to finish the fourth objective of the Catch ‘Em All Challenge.
For more on BitLife, check out How to take pets to the Vet in Bitlife or How to get a Dog as a Pet in Bitlifeon Pro Game Guides.