A Custer County Nebraska cow recently gave birth to four healthy, lively calves; quadruplets. Two of them weighed 30 pounds and two of them weighed 35. Quad mom and calves are all healthy and doing fine.
Source: Sandhills Express, March 14, 2024. Link. (3:33) The widely accepted odds by veterinary experts of a cow having four calves in one pregnancy is one in 700,000. Those odds slim significantly if all calves are live at birth: one in 11.2 million.