Nha Phu Bay, Nha Trang, Vietnam (© Thang Tat Nguyen/Getty Images)

Monarch butterflies feeding from wildflowers (© bookguy/Getty Images)

Amazon rainforest, Peru (© Rhett Ayers Butler/Getty Images)

Stonehenge, Salisbury Plain, Wiltshire, England (© Captain Skyhigh/Getty Images)

Bald eagle, Tongass National Forest, Alaska (© Jaynes Gallery/Shutterstock)

City Hall lit up for Juneteenth in San Francisco, California (© yhelfman/Shutterstock)

Common tern father with chick, Nickerson Beach, Long Island, New York (© Vicki Jauron, Babylon and Beyond Photography/Getty Images)

‘Paddle Out for Unity’ event in San Diego, California (© Brandon Colbert Photography/Getty Images)

Hawksbill sea turtle swimming near Akajima, Okinawa, Japan (© Robert Mallon/Getty Images)

Synchronous fireflies, Great Smoky Mountains National Park, Tennessee (© Floris Van Bruegel/Minden Pictures)