How animals adapt to environments
Identify how animals and plants are adapted to suit their environment and understand that adaptation may lead to evolution over time
What a learner can do afterwards
- Define adaptation as a feature that helps an organism survive in its environment
- Give at least three examples of adaptations in different organisms and explain how each helps survival
- Explain that over many generations, organisms with helpful adaptations survive and reproduce more, leading to evolution
The lesson
Every animal and plant lives somewhere different: a hot desert, a frozen icecap, a dry grassland. To survive there, a living thing needs a feature that fits that place. This is called an adaptation. An adaptation is a feature that helps an organism survive in its environment.
A camel lives in the desert, where water and food are hard to find. Its hump stores fat, and the camel's body turns that fat into energy and water when supplies run low. This adaptation lets the camel travel for days without eating or drinking.
A cactus lives in the same dry desert. Its thick, waxy skin holds water inside and stops it from escaping in the heat. Sharp spines instead of leaves also keep thirsty animals from eating it. Both are adaptations to a place with almost no rain.
A polar bear lives on Arctic ice, where cold can be deadly. Its thick white fur traps warm air against the skin and blends in with the snow, hiding the bear from prey. Warmth and camouflage together are exactly what its environment demands.
Adaptations do not appear overnight. Over many generations, the animals and plants born with a helpful feature survive and have more offspring than the ones without it. Slowly, that feature becomes common in the whole species. That slow change over time is evolution.
An adaptation is a feature that helps an organism survive where it lives, and helpful adaptations passed down over many generations lead to evolution.
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Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.