Sultana, the six-week-old Siamang gibbon, cuddles up to mum Salone in the gibbon enclosure at Noah's Ark Farm Zoo, Wraxall, near Bristol. (Photo by Ben Birchall/PA Images via Getty Images)
Sultana, the six-week-old Siamang gibbon, cuddles up to mum Salone in the gibbon enclosure at Noah's Ark Farm Zoo, Wraxall, near Bristol. (Photo by Ben Birchall/PA Images via Getty Images)