Hawkeye
Hawkeye the Labrador retriever is proof that dogs, too, suffer from heartbreak. During Navy SEAL John Tumilson’s funeral in 2011, Hawkeye ambled up to his owner’s coffin and dropped to the ground with a heaving sigh. Tumilson’s cousin, Lisa Pembleton, snapped this photo of the devoted dog and posted it on her Facebook page, and the heartbreaking photo was soon shared around the world.