Sir David Attenborough released a lovely message full of gratitude for all the 100th birthday wishes and greetings he has been receiving from so many people around the world 💖 "From preschool groups to care home residents to countless individuals and families of all ages...I would like to thank you all most sincerely for your kind messages," he said ✨ 📽️ : BBC #DavidAttenborough #100years #MilestoneBirthday