| Comments |
P.R889 left column 2nd paragraph: "Birds evolved from dinosaurs, and therefore are dinosaurs, in the same way that humans are a type of mammal (Figure 1). Birds are nested within the theropod dinosaurs, the major subgroup of mostly carnivorous species that includes the behemoths Tyrannosaurus and Allosaurus, but also smaller and obviously much more bird-like species such as Velociraptor, Deinonychus, and Troodon [refs 21, 22]. Birds are members of a nested set of ever-more exclusive theropod subgroups: Coelurosauria, Maniraptora, and Paraves (Figure 1). Their very closest relatives are the mostly small-bodied, feathered, large-brained dromaeosaurids and troodontids, exemplified by the well-known Velociraptor [ref 23]." See caption to right of figure |