Researchers from a new study say they found that consuming the preservatives used in foods such as deli meat, bacon and cereal is associated with a higher risk of developing cancer. David Muir reports. | ABC World News Tonight with David Muir

2.9M views · 147K reactions | A mother let her five-year-old daughter, who’s nonverbal with autism, borrow her phone to explore for "treasures.” David Muir reports on the priceless moment she heard her daughter say “I love you” for the very first time – all caught on camera. https://trib.al/vazz3nC | ABC World News Tonight with David Muir | Facebook

1.1M views · 39K reactions | Groundbreaking researcher and conservationist Jane Goodall has died at the age of 91. David Muir reports on how her research on chimpanzees changed the way many viewed our closest relative – and the natural world around us. https://abcnews.link/DUN2dcf | ABC World News Tonight with David Muir | Facebook