American Flamingos (Phoenicopterus ruber) standing in water with two birds taking flight in the foreground, Celestun Biosphere Reserve; Celestun, Yucatan, Mexico

Two Gentoo Penguin (Pygoscelis papua) chicks at Almirante Brown Antarctic Base, Antarctic Peninsula; Antarctica

Two Gentoo Penguin (Pygoscelis papua) chicks begging to be fed at Almirante Brown Antarctic Base, Antarctic Peninsula; Antarctica

Captive at the Alaska Wildlife Conservation Center in Portage Alaska in Southcentral Alaska. Brown bear standing with white snow covered paws in air. Wire has been removed from image.

Lilac-breasted Roller (Coracias caudatus) sitting on grazing Wildebeest, Ngorongoro Crater; Tanzania

Western Gulls (Larus occidentalis) perform courtship rituals on the Oregon Coast; Hammond, Oregon, United States of America

Gentoo penguins (pygoscelis papua); antarctica

Gentoo penguins (pygoscelis papua); antarctica

Gentoo Penguin with chick (Pygoscelis papua) at Almirante Brown Antarctic Base, Paradise Harbour, Antarctic Peninsula; Antarctica

Fishing for stripers off the Atlantic coast; Massachusetts, United States of America

Two women talking with pet birds

A man bringing roses to a woman sitting at her window with her pet bird

Senior couple enjoying drawing, Illustration, Side View

Two women at watering hole surrounded by animals

Side view of graduates standing by the university

Two penguins standing side by side, side view

Bridal couple standing side by side in Japanese style clothing in front of gilded folding screen, front view, Japan

Two Allosaurus predators prepare for an attack on a herd of Omeisaurus.

Olorotitan eat duckweed in a large swamp as two Microraptors fly above.

Little owl (athene noctua) couple

Two birds standing together; beijing china