WEBVTT 1 00:00:02.000 --> 00:00:04.488 Welcome to Read Listen Draw! 2 00:00:04.488 --> 00:00:11.453 Get ready to meet long-necked giants, horned plant eaters and dinosaurs with feathers. 3 00:00:11.453 --> 00:00:17.424 Explore 25 amazing facts, then look for a living dinosaur outside your window! 4 00:00:17.424 --> 00:00:17.921 1. 5 00:00:17.921 --> 00:00:26.379 Dinosaurs were already living on Earth around 230 million years ago, during a time called the Triassic Period. 6 00:00:26.379 --> 00:00:26.877 2. 7 00:00:26.877 --> 00:00:31.355 Dinosaur fossils have been found on all seven continents. 8 00:00:31.355 --> 00:00:33.345 That includes icy Antarctica! 9 00:00:33.345 --> 00:00:33.842 3. 10 00:00:33.842 --> 00:00:36.828 Dinosaurs did not all live together. 11 00:00:36.828 --> 00:00:41.305 Stegosaurus lived millions of years before Tyrannosaurus rex appeared. 12 00:00:42.875 --> 00:00:43.341 4. 13 00:00:43.341 --> 00:00:47.997 Scientists called palaeontologists study fossils to learn about ancient life. 14 00:00:47.997 --> 00:00:51.722 Bones and teeth are important clues about dinosaurs. 15 00:00:51.722 --> 00:00:52.188 5. 16 00:00:52.188 --> 00:00:54.516 Footprints can become fossils too. 17 00:00:54.516 --> 00:01:01.966 A trail of fossil footprints is called a trackway and can reveal how an animal moved. 18 00:01:01.966 --> 00:01:02.432 6. 19 00:01:02.432 --> 00:01:05.691 Fossilised dinosaur dung is another useful clue. 20 00:01:05.691 --> 00:01:09.882 It can help scientists investigate what an animal ate. 21 00:01:11.450 --> 00:01:11.879 7. 22 00:01:11.879 --> 00:01:14.882 Apatosaurus belonged to a group called sauropods. 23 00:01:14.882 --> 00:01:19.172 These dinosaurs had small heads, long necks and long tails. 24 00:01:19.172 --> 00:01:19.601 8. 25 00:01:19.601 --> 00:01:23.033 Apatosaurus ate plants and walked on four legs. 26 00:01:23.033 --> 00:01:26.894 An animal that eats plants is called a herbivore. 27 00:01:26.894 --> 00:01:27.323 9. 28 00:01:27.323 --> 00:01:34.616 A long neck helped a sauropod reach lots of food without moving its whole body each time. 29 00:01:36.200 --> 00:01:36.622 10. 30 00:01:36.622 --> 00:01:44.225 Triceratops had three facial horns: two long horns above its eyes and a shorter horn on its nose. 31 00:01:44.225 --> 00:01:44.647 11. 32 00:01:44.647 --> 00:01:49.293 A broad, bony frill grew from the back of its skull. 33 00:01:49.293 --> 00:01:52.672 Its striking head makes Triceratops easy to recognise. 34 00:01:52.672 --> 00:01:53.095 12. 35 00:01:53.095 --> 00:01:55.207 Triceratops was a plant eater. 36 00:01:55.207 --> 00:02:01.542 A sharp beak clipped vegetation, while rows of teeth helped break down tough plant food. 37 00:02:03.100 --> 00:02:03.530 13. 38 00:02:03.530 --> 00:02:06.974 Stegosaurus had large bony plates along its back. 39 00:02:06.974 --> 00:02:11.277 These plates were part of its body, not separate stones. 40 00:02:11.277 --> 00:02:11.708 14. 41 00:02:11.708 --> 00:02:16.442 Stegosaurus also had sharp spikes near the end of its tail. 42 00:02:16.442 --> 00:02:19.885 Scientists think these could help it defend itself. 43 00:02:19.885 --> 00:02:20.316 15. 44 00:02:20.316 --> 00:02:23.328 Despite its spiky appearance, Stegosaurus ate plants. 45 00:02:23.328 --> 00:02:27.632 It did not need to hunt other dinosaurs for meat. 46 00:02:29.175 --> 00:02:29.595 16. 47 00:02:29.595 --> 00:02:32.112 Tyrannosaurus rex was a meat eater. 48 00:02:32.112 --> 00:02:37.147 Its sharp teeth had jagged edges that helped it cut through food. 49 00:02:37.147 --> 00:02:37.567 17. 50 00:02:37.567 --> 00:02:37.987 T. 51 00:02:37.987 --> 00:02:40.924 rex had two fingers on each hand. 52 00:02:40.924 --> 00:02:45.120 Its short arms looked tiny beside its powerful hind legs. 53 00:02:45.120 --> 00:02:45.539 18. 54 00:02:45.539 --> 00:02:45.959 T. 55 00:02:45.959 --> 00:02:53.931 rex fossils have been found in western North America, including places that are now the United States and Canada. 56 00:02:55.550 --> 00:02:56.004 19. 57 00:02:56.004 --> 00:02:57.366 Dinosaurs laid eggs. 58 00:02:57.366 --> 00:03:02.361 Fossilised eggs help scientists learn how these animals began their lives. 59 00:03:02.361 --> 00:03:02.815 20. 60 00:03:02.815 --> 00:03:07.809 A fossil egg does not always reveal which dinosaur laid it. 61 00:03:07.809 --> 00:03:11.896 A tiny skeleton inside can provide a valuable clue. 62 00:03:11.896 --> 00:03:12.350 21. 63 00:03:12.350 --> 00:03:17.344 A dinosaur called Citipati has been found fossilised over a nest. 64 00:03:17.344 --> 00:03:21.885 Its position suggests that it was caring for its eggs. 65 00:03:23.425 --> 00:03:23.916 22. 66 00:03:23.916 --> 00:03:27.840 Some dinosaurs that were not birds had feathers. 67 00:03:27.840 --> 00:03:31.764 Special fossils preserve traces of their feathery coats. 68 00:03:31.764 --> 00:03:32.255 23. 69 00:03:32.255 --> 00:03:34.217 Feathers existed before flight. 70 00:03:34.217 --> 00:03:40.594 Early feathers may have helped keep dinosaurs warm or helped them show off. 71 00:03:40.594 --> 00:03:41.084 24. 72 00:03:41.084 --> 00:03:45.008 About 66 million years ago, an asteroid struck Earth. 73 00:03:45.008 --> 00:03:50.404 The resulting disaster wiped out the dinosaurs that were not birds. 74 00:03:50.404 --> 00:03:50.895 25. 75 00:03:50.895 --> 00:03:55.310 Birds survived, and every living bird is a dinosaur. 76 00:03:55.310 --> 00:04:00.215 A sparrow outside your window belongs to this remarkable family!