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.
600 g (about 1 lb 5 oz) A useful rule of thumb is that most healthy, full-term newborn babies double their birth weight by four months and triple it by their first birthday. Keep in mind, though, that all babies grow at their own pace. Your baby may gain weight faster or slower than the rates mentioned above.