Adaptation
Adaptations help organisms survive in their environments.
About this topic
An adaptation is an inherited feature that helps an organism survive and reproduce in its environment. Structural adaptations are body features such as a camel's hump or polar bear's fur; behavioural ones include migration and hibernation; physiological ones involve internal processes like venom production.
Adaptations arise through natural selection over many generations, not by an individual's needs. Organisms are adapted to their habitats, which is why a change in the environment can make a trait helpful or harmful.
The desert fox has large ears that lose heat, the arctic fox small ones that save it. Physiological adaptations include antivenom resistance in mongooses or producing antifreeze proteins in polar fish. Adaptations arise through natural selection over many generations; an individual cannot choose to adapt.
Organisms in the same environment may show convergent evolution: sharks and dolphins have similar streamlined bodies though one is a fish and the other a mammal. Adaptations that are helpful in one place can be a disadvantage if the environment changes quickly, which is one reason climate change threatens species. A common mistake is saying a polar bear grew thick fur because it was cold; in fact bears with thicker fur survived and reproduced more.
Key ideas
- Structural, behavioural, physiological
- Camouflage and mimicry
- Arise via selection
Quick check
Use cases: where Adaptation helps
- Homework: review the key idea behind Adaptation before you start a problem set.
- Exam revision: use the quick check to test whether you can recall Adaptation without notes.
- Visual learning: play with the interactive lab to see how Adaptation changes when you adjust its inputs.
- Teaching a friend: explain Adaptation in your own words, then compare your version with the key ideas.
Biology underpins medicine, farming, conservation and biotechnology.
Frequently asked questions
What is Adaptation?
Adaptations help organisms survive in their environments.
What will I learn in Adaptation?
Structural, behavioural, physiological. Camouflage and mimicry. Arise via selection.
Is Adaptation part of Biology?
Yes. It is one of 150 Biology topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the Adaptation lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study Adaptation?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.