Photo by Federico Rizzato / 2017 National Geographic Nature Photographer of the Year. Weaver and nest.

Photo by Adam Zaff / 2017 National Geographic Nature Photographer of the Year. Courage.

Photo by Wai Hoe Mok / 2017 National Geographic Nature Photographer of the Year. Rush Hour.

Photo by Sonalini Khetrapal / 2017 National Geographic Nature Photographer of the Year. The Duel.

Photo by Harry Collins / 2017 National Geographic Nature Photographer of the Year. Great Gray Owl.

Photo by Ge Xiao / 2017 National Geographic Nature Photographer of the Year. Flamingos and their nests.

Photo by Franco Banfi / 2017 National Geographic Nature Photographer of the Year. Swimming over the sleepers.

Photo by Derek Burdeny / 2017 National Geographic Nature Photographer of the Year. Prairie Dancer.

Photo by Łukasz Prajzner / 2017 National Geographic Nature Photographer of the Year. Cordulia aenea.

Photo by Franco Banfi / 2017 National Geographic Nature Photographer of the Year. Fireworks.

Photo by Vladimir Voychuk / 2017 National Geographic Nature Photographer of the Year. Volcano.

Photo by Kenny Lee / 2017 National Geographic Nature Photographer of the Year. Shy little cowry.

Photo by Sam Edmonds / 2017 National Geographic Nature Photographer of the Year. Great Bear Surf Scoters.

Photo by Andro Loria / 2017 National Geographic Nature Photographer of the Year. Arctic reflection.

Photo by sanjeev bhor / 2017 National Geographic Nature Photographer of the Year. Sword.

Photo by ALEXEY KHARITONOV / 2017 National Geographic Nature Photographer of the Year. Konduki.

Photo by Maryna Sulym / 2017 National Geographic Nature Photographer of the Year. Graph of a function of height.

Photo by Magali CHESNEL / 2017 National Geographic Nature Photographer of the Year. At the crossroads.

Photo and caption by Carolyn Watson / 2017 National Geographic Nature Photographer of the Year. Decisions.

Photo by Todd Kennedy / 2017 National Geographic Nature Photographer of the Year. Rock Pool.

Photo by Christian Aslund / 2017 National Geographic Nature Photographer of the Year. Kvitøya - Svalbard.