A new study shows a worrying global trend. Vaccination rates are falling in many countries. This puts millions of children at risk of diseases. Measles vaccinations have declined in about 100 countries. The COVID-19 pandemic disrupted vaccination services. Misinformation also plays a role. Experts call for action to improve healthcare access. They want to restore routine immunization services.

Scientists found fossils of a new, small dinosaur. This dinosaur, Enigmacursor mollyborthwickae, was about the size of a dog. It lived 150 million years ago with giant dinosaurs like Stegosaurus. The discovery shows how diverse dinosaur ecosystems were. It also challenges old ideas about dinosaur dominance. The dinosaur is now at the Natural History Museum.