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)

Daisy Lowe attends The Phillips British Academy Awards 2011 at The Grosvenor House Hotel on May 22, 2011 in London, England. (Photo by Dave Hogan/Getty Images)

A married couple is displayed on a pile of cheeses in the “Speciality” category during the Swiss Cheese Awards competition in Le Sentier, Switzerland September 23, 2016. One hundred and fourty-two experts have to choose the best out of 777 cheeses from 353 producers competing in 28 categories. (Photo by Denis Balibouse/Reuters)

A selection of prizewinning images from the Take a View 2016 photography awards. Here: Finding Gold, taken in Wast Water in Cumbria, which won the Great Britain #OMGB “Home of Amazing Moments” award. (Photo by Mark Gilligan/PA Wire)

South Korean actress singers Tiffany (R) and Seohyun react in front of an official camera on the red carpet during 2015 Mnet Asian Music Awards (MAMA) in Hong Kong, China December 2, 2015. (Photo by Bobby Yip/Reuters)

A panel of 10 high-profile judges from within the surfing industry including seven-time world surfing champion Stephanie Gilmore were tasked with selecting the best of the best surfing photos for the 2020 Nikon surf photography awards. The judges were looking for innovation and creativity, uniqueness, dramatic affect and sensory impact. Here: “Free Fall”. (Photo by Ren Mcgann/2020 Nikon Surf Photography Awards)

“It’s Fashion Week in Sao Paulo, Brazil and you don’t have to be a celebrity or a designer to check out these couture pieces. Subway stations were used as improvised catwalks in order to give the general public a chance to see these creations up close and at the price of a subway fare”. – Reuters. Photo: A model presents a creation in a subway station during the Sao Paulo Fashion Week in Sao Paulo October 27, 2013. (Photo by Paulo Whitaker/Reuters)

A model (C) looks at her mobile phone while backstage before the araisara Sara Arai Collection show during China Fashion Week in Beijing on March 27, 2015. China Fashion Week runs from March 24 to March 31. (Photo by Wang Zhao/AFP Photo)