On returning to England, Darwin and an ornithologist associate identified 13 species of finches that he had collected on the GalÃ¡pagos Islands. This was puzzling since he knew of only one species of this bird on the mainland of South America, nearly 600 miles to the east, where they had all presumably originated.
To get the most out of a nap, follow these tips: 1  Keep naps short. 2  Aim to nap for only 10 to 30 minutes. 3  The longer you nap, the more likely you are to feel groggy afterward. 4  Take naps in the afternoon.
By 6 months, your baby will probably be taking two or three naps a day: one in the morning, one in the early afternoon, and another later in the afternoon. At 9 to 12 months, most babies are down to two naps a day, one in the morning and one in the afternoon.