This unique collection of photographs shows the concentrated faces of dogs just before catching their beloved treats. Professional photographer Christian Vieler, from Germany, shot the latest series of his “Dogs Catching Treats in Trouble” collection with hilarious results. Here: Hudson the Rhodesian Ridgeback. (Photo by Christian Vieler/Caters News Agency)

A keeper stands next to llamas during the Annual Stocktake at ZSL London Zoo in London, Britain February 7, 2018. (Photo by Tom Jacobs/Reuters)

A man dressed in Christmas garb smokes a hand-rolled cigarette, Thursday, December 24, 2020, in Times Square on Christmas Eve in New York. (Photo by Kathy Willens/AP Photo)

Natalia Williams dressed as Corpse Bride Emily and Tony Knight as a Mandalorian, arrive at the Bradford Unleashed Comic-Con, an entertainment and comic book convention in England on March 8, 2020. (Photo by Danny Lawson/PA Images via Getty Images)

A reveller falls over into the road in Newcastle, Britain, July 4, 2020 on the day pubs and restaurants were finally allowed to reopen. (Photo by North News and Pictures)

Youtubers wearing masks of pigs film a video at a shopping district which has fewer people than usually amid the coronavirus disease (COVID-19) outbreak in Tokyo, Japan, May 19, 2020. (Photo by Kim Kyung-Hoon/Reuters)

A woman in a face mask dances inside the club on the opening of the summer season for “Villa delle Rose”, one of the most famous clubs on the Adriatic Coast on June 20, 2020 in Rimini, Italy. The Villa delle Rose is among the first dance clubs to reopen in the Adriatic Riviera after the Covid-19 pandemic. (Photo by Max Cavallari/Getty Images)

A boy attends Eid al-Adha prayers on the street outside Abu Hanifa mosque in Baghdad Adhamiya district, during the outbreak of the coronavirus disease (COVID-19), in Iraq, July 31, 2020. (Photo by Thaier Al-Sudani/Reuters)