Animal rights charity Peta has named a "wise" bull Sir Attenbullock, a unique tribute to celebrate nature broadcaster Sir David Attenborough 's upcoming 100th birthday on 8 May. The bull, named Sir Attenbullock to celebrate his birthday on May 8, will be mentioned in a letter sent to Sir David by Peta founder Ingrid Newkirk. The letter will tell him the animal was among the first rescued through Peta India’s Delhi mechanisation project. This initiative aims to replace animal-drawn carts with electric vehicles so the overworked animals can retire. In her letter, Ms Newkirk writes that Sir Attenbullock is "strong, yet gentle", which she says he shares with Sir David, and adds that he also "quietly inspires others to appreciate the richness of the natural world". She added: "He has a presence that draws people into his world, including visiting children.…