Members of the Coney Island Polar Bear Club warm up before swimming at the beach at Coney Island in New York, December 15, 2013. (Photo by Eric Thayer/Reuters)

Staff members clean the court during the Women's Preliminary Round - Pool B volleyball match between China and Argentina on day ten of the Tokyo 2020 Olympic Games at Ariake Arena on August 2, 2021 in Tokyo, Japan. (Photo by Carlos Garcia Rawlins/Reuters)

View of the work “Divided” (2016), within the visual artist's exhibition “Urs Fischer: Lovers”, exhibited at the Museo Jumex in Mexico City, Mexico 31 March 2022. The sensations and emotions of love and life, as well as the energy and forces that create and wear it down, inhabit “Urs Fischer: Lovers”, the first solo exhibition in Mexico by Swiss plastics artist Urs Fischer. (Photo by Alex Cruz/EPA/EFE)

American actress Alexandra Daddario goes skinny dipping on vacation in the last decade of December 2022. (Photo by alexandradaddario/Instagram)

Tourists are watching the sunrise from a viewing platform on the Three Gorges Dam in Yichang, China, on June 23, 2024. (Photo by Costfoto/NurPhoto/Rex Features/Shutterstock)

Police detain a protester during a demonstration against the recent gang-rape of a woman in a moving car, according to local media, in Kolkata, India May 31, 2016. A woman was kidnapped and gang-raped by at least four men on May 29 in the Salt Lake area of the city and is currently being treated in hopsital, local media reported. (Photo by Rupak De Chowdhuri/Reuters)

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)

Australia's State Emergency Service (SES) personnel gather at the scene of a light plane crash near the Capital Golf Course, in Melbourne, Australia, 22 June 2021. A pilot was injured and rushed to hospital after his light plane crashed shortly after taking off from Moorabbin Airport. (Photo by James Ross/EPA/EFE)