Today's lesson is all about reptiles.0:12
Reptiles date back about 280 million years.0:15
Dinosaurs are the most famous reptiles of all, even though they are not around anymore.0:23
These days there are about 6,000 types of reptiles, including snakes, lizards, turtles, alligators and crocodiles.0:29
Some reptiles are dangerous.0:39
Some have got very sharp teeth, such as alligators.0:42
Some species of snakes are poisonous, such as tiger snakes in Australia and coral snakes in the Americas, to mention a few.0:46
We can find reptiles all over the world, except in very cold places.0:56
Some live on land and some live in water.1:02
But most of them live in hot, humid and tropical places.1:06
This is because reptiles have got cold blood.1:11
Reptiles are animals with a backbone.1:15
And except for snakes, most reptiles have four legs.1:18
Reptiles come in all shapes and sizes.1:23
Some are less than 5cm long, while others grow up to 9 metres long.1:26
Most reptiles are meat eaters and eat other animals and insects.1:33
But a few lizards and turtles only eat plants.1:38
Now let's watch a short film about reptiles.1:43
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