Sir David Attenborough, one of the biggest names in the natural world, is turning 100! There are many events planned to celebrate this special day, including live music concerts and a look back at some of his past programs. We want to hear from you! What's your birthday message to Sir David Attenborough? You can send us a message or a video through the comments section below. Sir David has been on our screens for over 70 years and has made nature documentaries about everything from the oceans to the skies, and from animals to insects. He has inspired future generations of naturalists and has had over 50 plants, animals, and dinosaur fossils named after him. Did you know that Sir David has won many awards for his work in the natural world and has made a big contribution to conservation efforts? His birthday is a special day for nature lovers, and you can celebrate his impact on the natural world by sending him a birthday message.