Summarize:

By this age, the rabbit should be fully weaned and able to eat solid food. A reputable breeder or seller should not offer rabbits that are under this age or not weaned. If you are interested in taking in baby rabbits from a shelter, rescue, or other source, make sure you get extensive instruction on the care you need to provide. A rabbit chosen from a reputable source will usually be healthy, but it’s always a good idea to check it for signs of illness. Ask the breeder, staff at the shelter or rescue, or—best of all—a veterinarian to walk you through the process of evaluating a rabbit’s health. Look for things like:  A runny nose or trouble breathing, which may indicate a respiratory infection. A tilted head, which can indicate an inner ear infection. Wetness of discharge from the nose or ears—these should be dry. Cloudy or goopy eyes—they should be clear and sparkling. Improperly aligned teeth—the rabbit should have a slight overbite. Stool that isn’t firm and dry—this indicates potential digestive issues. Rabbits are social animals by nature, and usually do best in groups of 2 or more. However, not all rabbits get along, so you may need to allow for a trial period first.  Same-sex pairings can work, but male-female pairings (when both have been de-sexed) are typically recommended by experts. Allow the rabbits to meet and interact in a neutral setting—that is, not on the “home turf” of one of the rabbits—to see if they make a good pairing. You can usually get a good idea of how they’ll get along within a few hours at most. Before bringing your rabbit (or rabbits) home, make sure you have all the necessary supplies ready to go. Talk to the breeder or staff at the point of purchase to get the specific list for your rabbit. Generally speaking, the list will include:  A roomy, multi-level rabbit enclosure. A nesting box for sleeping A food dish and water bottle. A litter box, litter scoop, and litter. Rabbit chew toys. Bedding (e.g., aspen chips, paper, straw) to line the floor of the enclosure. Food pellets, hay, and fresh fruits and vegetables. An appointment with a veterinarian who has experience dealing with rabbits. Pet rabbits should receive regular checkups.
Buy a rabbit that’s at least 8 weeks old. Check the rabbit for signs of illness before buying it. Consider buying more than one rabbit to ensure their happiness. Make sure you have all the initial supplies you’ll need.