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)

New lovebirds boxer Robin Deakin – once known as “Britain's Worst Boxer” – and former UK “Big Brother” star Lisa Appleton go to the boxing gym in London, United Kingdom on September 28, 2016. The pair were seen holding hands in the street on arrival, and they then slogged it out in the ring and fooled about in Robin's gym. (Photo by FameFlynet UK)

JAPAN: A businessman stands at a pond in the Kyu-Shiba-rikyu Garden on a warm and sunny day in Tokyo, Japan, March 18, 2016. (Photo by Thomas Peter/Reuters)

WeHo Pride's Grand Marshal Icon rapper Janelle Monáe rides in the city of West Hollywood's Pride Parade on June 05, 2022 in West Hollywood, California. (Photo by APEX/The Mega Agency)

In this image released on December 09, English model Leomie Anderson and English model and actress Jourdan Dunn attend the 2020 MOBO Awards held at Exhibition London on December 07, 2020 in London, England. The MOBO Awards will be live-streamed on YouTube at 7pm and broadcast on BBC One at 10.45pm. (Photo by Michael Tubes/MOBO Organisation/Rex Features/Shutterstock)

A child working at Ship breaking yard in Chittagong, Bangladesh on November 14, 2014. (Photo by Pascal Mannaerts/Alamy Stock Photo)

Australian professional boxers Ebanie Bridges (L) and Shannon O'Connell weigh-in ahead of their IBF World Bantamweight Title fight during the weigh in at Aspire, Leeds, United Kingdom on Friday, December 9, 2022. (Photo by Tim Goode/PA Wire)

A gallery worker poses with work by artist Elinor Stanley during a press preview of The RA Schools Show 2023 at the Royal Academy of Arts in London, Britain, 08 June 2023. The RA Schools Show 2023 runs from 08 to 25 June 2023 at the Royal Academy of Arts in London. (Photo by Neil Hall/EPA)