Cretaceous was the era of birds. [1]
The frogs gave rise to the Reptilia, a great animal family which is virtually extinct, but which, before passing out of existence, gave origin to the whole bird family and the numerous orders of mammals. The bird types of today—eagles, ducks, pigeons, and ostriches—all descended from the enormous reptiles of long, long ago. The kingdom of reptiles, descended from the frog family, is today represented by four surviving divisions: two nonprogressive, snakes and lizards, together with their cousins, alligators and turtles; one partially progressive, the bird family, and the fourth, the ancestors of mammals and the direct line of descent of the human species. [2] Birds evolved from hollow-boned leaping dinosaurs. [3]
The wading and swimming prebirds of earlier ages had not been a success in the air, nor had the flying dinosaurs. They were a short-lived species, soon becoming extinct. They, too, were subject to the dinosaur doom, destruction, because of having too little brain substance in comparison with body size. [4]
Andon created fire with flint sparks into bird’s nest. [5] By 5000 B.C. the Mesopotamian, Turkestan, and Chinese farmers had begun the raising of fowls. [6] Birds became fetish animals. [7] Primitives believed birds to be source of wind. [8]
Birds are used for transport on Jerusem. [9]
Types of birds named in The Urantia Book: