In Stardew Valley, managing farm animals is a key aspect of gameplay, with various animals available for players to raise in Coops and Barns. Coop animals like Chickens, Ducks, Rabbits, and Dinosaurs offer daily or periodic products such as eggs, wool, and feathers, with specific breeds like the Blue Chicken and Void Chicken requiring unique conditions to acquire. Meanwhile, Barn animals, including Cows, Goats, Sheep, Pigs, and Ostriches, produce valuable items like milk, wool, and truffles. Each animal type has specific requirements and can be purchased from Marnie's Ranch or obtained through special means, offering players multiple avenues to enhance their farm's productivity and profitability.