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Transcript of Animals
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As well as eating food, animals need to breathe oxygen, a gas found in air and water. Animals take oxygen into their bodies, in a variety of different ways. Fish have gills, which filter oxygen from the water as it flows through them. Insects take in oxygen through tiny holes in their bodies called spiracles. Humans and many other animals have lungs, which extract oxygen from the air.
There are millions of species of animals. They include insects, fish, birds, reptiles, amphibians and mammals which include humans. Unlike plants, most animals are able to move from one place to another to find food.
Different animals eat different kinds of food. Herbivores eat plants and carnivores eat animals. Animals that eat both plants and animals, such as brown bears, are called omnivores. Most humans are omnivores. Some species of animals eat different food depending on were they live. For example, although brown bears usually eat plants, fruit and meat, if there is a river nearby, they will eat fish too.
Tools for eating
Animals bodies are adapted to suit different kinds of food they eat. Herbivores usually have flat, broad teeth designed for munching plants, while most carnivores have sharp teeth to help them grip their prey and pierce raw flesh. Omnivores usually have a mixture of both kinds.