Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax), Monterey Bay, California

Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers,superbloom, Antelope Valley, California

Jeff Foott / Full moon over Balanced Rock formation, Arches National Park, Utah

Colin Monteath/ Hedgehog House / Icebergs in winter in lake, Hooker Glacier, Mount Cook, Mount Cook National Park, New Zealand

Derek Galon / Shipwreck washed ashore by hurricane Maria. Dominica, December 2017. Stitched panorama. Wrecks like this appear picturesque but may release toxic materials from the hulls.

Shane P. White / Tephra during volcanic eruption, Mount Yasur, Tanna Island, Vanuatu

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) calf, Maui, Hawaii

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) breaching, Maui, Hawaii

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) tail slapping at sunrise, Lahaina, Maui, Hawaii

Chase Dekker / Long-beaked Common Dolphin (Delphinus capensis) pod porpoising, Monterey Bay, California

Chase Dekker / Brown Bear (Ursus arctos) in river, Katmai National Park, Alaska