U.S. President Donald Trump gestures during his visit to a section of the U.S.-Mexico border wall in Otay Mesa, California, U.S. September 18, 2019. Trump threatened to do “dastardly things” to Iran in response to the drone attacks on the world’s largest oil plant in Saudi Arabia. The US President indicated he is wary of involving America in another war in the Middle East – but he did not rule out a military attack. (Photo by Tom Brenner/Reuters)

Larsa Pippen leaves little to the imagination in a VERY racy warrior costume as she joins Shanina Shaik at Paris Hilton's Halloween bash in Beverly Hills, CA. on October 24, 2019. (Photo by Backgrid USA)

American actress and model Karruche Tran arrives at Highlight Room for a Halloween party in Hollywood, CA. on October 29, 2019, dressed as Nancy Callahan from “Sin City”. (Photo by Backgrid USA)

With its huge eyes, comical name and diminutive size, Mark R. Smith’s image of a baby Hawaiian bobtail squid can’t help but raise a smile. A curiously endearing creature, the cephalopod is just 1.5cm across, its mantle cavity bearing more than a passing resemblance to a rather natty shower cap. But it is also a beautiful example of symbiosis – nature’s version of “I’ll scratch your back if you scratch mine” – for on the underside of the squid is a light organ which houses bioluminescent bacteria. The squid offers the bacteria protection and food, while the bacteria emit a glow – a handy trait that the squid uses to offset its silhouette, helping it to evade predators in the depths below. Mark R. Smith’s entry combines several images of a Hawaiian bobtail squid with different focus lengths to create a final picture with greater depth of field than normal. (Photo by Mark R. Smith/Wellcome Images/Macroscopic Solutions)

Martin Herrera, 58, who has had a love for roosters since his childhood, and has spent the last 20 years domesticating and training them, walks with his favorite rooster “Paquito” in San Jose, Costa Rica April 27, 2017. (Photo by Juan Carlos Ulate/Reuters)

A woman hands flowers to a member of the Wisconsin National Guard standing by as people gather for a vigil, following the police shooting of Jacob Blake, a Black man, in Kenosha, Wisconsin, U.S., August 28, 2020. (Photo by Brendan McDermid/Reuters)

As the sun sets on the Malecon in Havana on Friday January 23, 2015, Surenis Angulo de la Paz, 24, center, dances as group of locals play music around her. Behind her is Fidel Lopez, 55. (Photo by Sarah L. Voisin/The Washington Post)

American media personality and socialite Kourtney Kardashian in the second decade of October 2022 promotes her Lemme gummy vitamins. (Photo by kourtneykardash/Instagram)