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.
If she wakes up in the morning and takes her nap 2 hours later, she'll only nap for 2 hours, but 3+ hours means she will nap for about 3 hours and then she is up for 5 or 6 hours. My daughter started napping once a day around the same age. I stretched her nap time to just after lunch and she has had this routine for 9 months now. Straight after lunch she asks for nite nites and is very happy to go. I let her sleep for an hour and a half now but when she was one she had 2 to 2.5 hours sleep.