Toothed whales (Odontoceti) this group includes dolphins and orcas. These whales eat meat.   Baleen whales (Mysticeti) This group includes the Blue whale, Grey whale â¦ and Minke. They pull in a mouthful of seawater and feed on plankton.
Weight Gain Patterns. Between 1 to 4 months of age, an infant will generally gain 1 1/2 to 2 pounds per month, explains HealthyChildren.org, the website published by the American Academy of Pediatrics. From 4 to 7 months, his weight gain will slow to 1 to 1 1/2 pounds each month. A healthy baby boy will weigh between 14 1â2 and 17 1â2 pounds at 8 months; infant girls normally weigh about half a pound less than infant boys. By 12 months of age, a baby weighs about three times more than she did at birth.
The desired weight gain depends on the baby's size and gestational age. Sicker babies may need to be given more calories in order to grow at the desired rate. It might be as little as 5 grams a day for a tiny baby at 24 weeks, or 20 to 30 grams a day for a larger baby at 33 or more weeks. In general, a baby should gain about a quarter of an ounce (30 grams) each day for every pound (1/2 kilogram) he or she weighs. (This is equal to 15 grams per kilogram per day. It is the average rate at which a fetus grows during the third trimester).