Vertebrate Animals: Birds

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NATURAL SCIENCE TIME! FOURTH LEVEL Revision: Vertebrate animals: Birds. SOLUTIONS ACTIVITIES 1.- Read these sentences about birds. • Birds have feathers, wings, lay eggs and are warm blooded. • There are around 10000 different species of birds worldwide. • The Ostrich is the largest bird in the world. It also lays the largest eggs and has the fastest maximum running speed (97 kph). • Scientists believe that birds evolved from theropod dinosaurs. • Birds have hollow bones which help them fly. • Some bird species are intelligent enough to create and use tools. • The chicken is the most common species of bird found in the world. • Kiwis are endangered, flightless birds that live in New Zealand. They lay the largest eggs relative to their body size of any bird in the world. • Hummingbirds can fly backwards. • The Bee Hummingbird is the smallest living bird in the world, with a length of just 5 cm (2 in). • Around 20% of bird species migrate long distances every year. • Homing pigeons are bred to find their way home from long distances away and have been used for thousands of years to carry messages. 2.- Write five characteristics/features of birds.. • They are vertebrates. • They are oviparous. They hatch from eggs. • They lay eggs. • They are warm blooded. • They have a beak, feathers, wings and two legs. • They have lungs and breathe air. • They live on all continents. • Birds have hollow bones which hep them to fly. • They like to eat insects, seeds, plants and sometimes even small animals. See you soon. Amelia .

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Broad-Tailed Hummingbird Coloration and Sun Orientation 1
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