A robin perches on a spade handle in a garden on a rainy day in Lixwm, north Wales. Researchers said this week that when European robins are subjected to human-produced noise, their behaviour changes. (Photo by DGDImages/Alamy Live News)

Fifty years ago, as France exploded in mass protests, words scrawled on the walls of the Sorbonne summed up the revolutionary zeal of the time: “Run free, comrade, we’ve left the old world behind!”. Sexual liberation, artistic creativity and anti-capitalism were the order of the day. For those who were there, it was an unforgettable time. Here: A wounded student is transported by first-aid workers during riots on the Boulevard Saint-Michel, Paris, France on May 6, 1968. (Photo by Gökşin Sipahioğlu/SIPA Press)

A young child reaches out to a Gentoo penguin as it swims in its enclosure at Pairi Daiza Park in Cambron-Casteau, Belgium, Monday, July 5, 2021. Pairi Daiza, one of the biggest zoos in Europe, has recently added ten Gentoo penguins to their animal population. (Photo by Virginia Mayo/AP Photo)

A pair of alpacas at a British farm in Dorchester, Dorset on October 9, 2024 pose together at the perfect time to conjure up a creature straight out of Dr Dolittle's imagination. (Phoot by MaxWillcock/Bournemouth News)

A tower belonging to the Abengoa solar plant at the Solucar solar park is seen in Sanlucar la Mayor, Spain on October 1, 2018. (Photo by Marcelo del Pozo/Reuters)

A couple share a kiss at the “Purple Rain” installation at the Lycée Jacques-Decour on August 02, 2020 in Paris, France. Part of Festival Paris l'Eté, the installation by Pierre Ardouvin is a tribute to the song by Prince and allows visitors to role play while equipped with umbrellas and accompanied by the song. (Photo by Kiran Ridley/Getty Images)

Holloways Beach resident Lisa Methven watches the storm across the Coral Sea as Cyclone Jasper approaches landfall in Cairns in far north Queensland on December 13, 2023. A tropical cyclone was building strength as it rolled towards northeastern Australia on December 13, with authorities warning “life-threatening” floods could swamp coastal regions for days. (Photo by Brian Cassey/AFP Photo)

A cyclist rides in al-Qudra desert in the Gulf emirate of Dubai, on June 8, 2020. (Photo by Giuseppe Cacace/AFP Photo)