Tony Wu / Humpback whale (Megaptera novaeangliae australis) female, stationary with calf heading to surface for breath of air. Vava'u, Tonga, South Pacific.
Gavin Hellier / Timelapse looking out of the front of a train on the elevated Dubai Metro System, Dubai, United Arab EmiratesJanuary 2017. (This image may be licensed either as rights managed or royalty free.)
Tony Heald / Hippopotamus (Hippopotamus amphibius) splashing in pool in evening light. Mana Pools National Park, Zimbabwe.
Giri Cavale / Melanistic leopard / Black panther (Panthera pardus) on territorial patrol on track, Nagarahole National Park, Nilgiri Biosphere Reserve, Karnataka, India.
Alan Murphy/ BIA / Barn Owl (Tyto alba) flying with rodent prey, Texas
Alan Murphy/ BIA / Golden-fronted Woodpecker (Melanerpes aurifrons) female, Texas
Alan Murphy/ BIA / Clay-colored Thrush (Turdus grayi) feeding on berries, Texas
Alan Murphy/ BIA / Altamira Oriole (Icterus gularis), Texas