Brain-on-a-chip. Dazzling in green and magenta this image shows the nerve fibres (in green) produced by neural stem cells (in magenta) as they grow on a synthetic gel. Captured by a technique known as confocal microscopy, the image is part of research shedding light on how tinkering with the environment can affect the way in which nerve fibres grow. (Photo by Collin Edington and Iris Lee/Massachusetts Institute of Technology/Wellcome Images)

A participant rests while people take part in the Mermaid Parade at Coney Island, in Brooklyn, New York, June 20, 2015. The annual parade, founded in 1983, seeks to bring mythology to life for residents, create confidence in the district and to allow artistic self-expression in public, according to the parade's website. (Photo by Eduardo Munoz/Reuters)

Actress Liv Tyler, 40, stripped in shots for the Triumph Essence's Autumn/Winter 2017 campaign in November, 2017. The Essence line is Triumph’s premium offering, with this season taking on the theme of “opulent Art Nouveau”, featuring designs in velvet embellished mesh, Leavers lace and silk satin. (Photo by Rankin/The Mega Agency)

Women take part in an annual block party known as “Banda do Candinho e Mulatas” (Candinho Band and Mulatto Women), during carnival festivities at Bixiga neighbourhood in Sao Paulo, Brazil February 7, 2018. (Photo by Nacho Doce/Reuters)

A model performs on the catwalk of the Lambertz Monday Night event at Alter Wartesaal in Cologne, Germany, 03 February 2020. (Photo by Friedemann Vogel/EPA/EFE)

A highland cow in Purbeck, Dorset shows off for the camera in the second decade of February 2023. (Photo by Kate Fry/Bournemouth News)

Actress Lily Collins is seen filming on set of series 2 of “Emily In Paris” on May 4, 2021 in Saint-Jean-Cap-Ferrat, France. (Photo by Arnold Jerocki/GC Images)

Couples dance samba as smoke rises from a burning pyrotechnics warehouse in Moscow on June 19 2021. (Photo by Dimitar Dilkoff/AFP Photo)