How much weight does a baby whale gain each day?

Baby whales gain up to 200 pounds every day. After about a year inside its mother's womb, a baby blue whale emerges weighing up to 3 tons and stretching to 25 feet. It gorges on nothing but mother's milk and gains about 200 pounds every day for its first year.

Baby blue whales, or calves, are born big, but it takes a hefty diet to grow to the unparalleled full size of an adult blue whale. After a steady diet of mother's milk and plenty of weight gain, these beasts are well on their way to the massive size for which they are known.