Each week, National Geographic said the best images from photographs sent in by readers in its editorial. Here is the best picture of the 37th week of the year.
Swallow feeding its chick. (Norma Gleeson)
Mont Blanc mountain range at Lake Checrouit in Courmayeur, Italy. (Stefano Jeantet)
The remains of the tree on Trinity Lake in Northern California. (Tony Bond)
Coast in Oludeniz, Turkey. (Brad Malyon)
Parrots. Dubrovnik, Croatia. (Olga Vyshnyvetska)