Lucas Bustamante / Great frigate birds (Fregata minor) pair in courtship display, male with gular sac inflated, North Seymour Island, Galapagos Islands.

Lucas Bustamante / Blue-footed booby (Sula nebouxii) sitting on its guano nest, North Seymour Island, Galapagos Islands.

Jeff Vanuga / Black-footed ferret (Mustela nigripes) emerging from his tunnel at the soft release site in Aubrey, Arizona, USA. January, 2024. Endangered.

Jeff Vanuga / Man caring for Black-footed ferret (Mustela nigripes) at the recovery center, Sybille Research station administered by the Wyoming Game and Fish, Wyoming, USA. Captive. Endangered.

Jeff Vanuga / Researchers monitoring the Black-footed ferret (mustela nigripes) during the soft release program in Aubrey Valley, Arizona, USA. August, 2023. Endangered.

Jeff Vanuga / Black-footed ferret (Mustela nigripes) in cage prior to release back into the wild, Shirley Basin, Wyoming, USA. August, 2023.

Jeff Vanuga / Researcher monitoring Black-footed ferret (mustela nigripes) during the soft release program, Aubrey Valley, Arizona, USA. August, 2023.

Carol Walker / Aerial view of a wild palomino pinto stallion chasing his black mare on the windblown snow on Crooks Mountain, Wyoming, USA. March.

Carol Walker / A wild pinto stallion with his foal in grassland, McCullough Peaks, Wyoming, USA. October.

Carol Walker / Two wild stallions, one a brown curly and the other a sorrel, mutual grooming on snow-covered grassland, Salt Wells Creek, Wyoming, USA. January.

Carol Walker / A wild sorrel stallion looking back on snow-covered landscape, Green Mountain, Wyoming, USA. January.

Carol Walker / A wild red roan stallion rearing up as a rival approaches, Salt Wells Creek, Wyoming, USA. June.