A polar bear in the desert wouldn't last a day. This lesson explains habitats and the physical and behavioural adaptations that suit living things to them — and how, over long times, this leads to evolution.
Food, water, shelter and space. A woodland, a pond, a desert — each suits certain living things.
Physical features (thick fur, webbed feet) and behaviours (hibernating, migrating) that aid survival.
If a habitat changes — drought, new predators — poorly-adapted animals struggle. Over very long times, this drives evolution.
Why does a cactus have spines instead of leaves and a thick stem?
Not a choice! An individual can’t grow thicker fur by wanting to. Those born better-suited survive more — adaptation happens across generations.
Habitat = the home. It’s the specific place a living thing lives and gets its needs — a hedgehog’s habitat is the hedgerow, not ‘the countryside’ in general.
Behaviour counts too! Hibernating, migrating and being active at night are adaptations just as much as fur or feet.
A feature that helps a living thing survive in its habitat — a camel's humps, a polar bear's thick fur, or a behaviour like hibernating.
No — an individual can't change its features by wanting to. Those born with helpful features survive better and pass them on, so the species adapts over generations.
A habitat is the specific place an organism lives and meets its needs; the environment is the wider surroundings, including weather and other living things.
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