This week's questions

Publication date: 1 June 2019Source: New Scientist, Volume 242, Issue 3232Author(s): When a Tyrannosaurus rex or other carnivorous dinosaur is depicted on screen, it roars like a carnivorous mammal. But birds developed from dinosaurs, so could they have screeched or called like the modern cassowary, or made no noise at all?

Source: New Scientist - June 1, 2019 Category: Science Source Type: research