Why can't a polar bear survive in the desert?

Its thick fur and fat layer (insulation for -40°C) would cause overheating in desert heat. It also can't find seals to eat!

What adaptation helps a cactus survive in the desert?

Thick waxy skin to prevent water loss, spines instead of leaves (less surface area), and a large root system to absorb rare rainfall.

Pro 🔒~10 min

Animal Habitats

Ecosystems, adaptations, and where animals live

How it works

A habitat is the natural home of an animal or plant. Different habitats have different conditions: temperature, rainfall, sunlight, and available food. Animals have adaptations that help them survive in their habitat. Desert animals (camel, rattlesnake) conserve water and tolerate heat. Ocean animals (dolphin, clownfish) breathe underwater or hold breath for long periods. Forest animals (deer, owl) use camouflage among trees. Arctic animals (polar bear, penguin) have thick fur/feathers and fat layers for insulation. Grassland animals (zebra, lion) are adapted for open spaces. When habitats change (climate, human activity), animals must adapt, migrate, or face extinction.

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Step-by-step

Select a habitat to see its typical animals, climate, and landscape.
Adjust temperature and rainfall to see how animals respond to changing conditions.
Drag animals between habitats to learn about adaptations.

Frequently asked questions

Why can't a polar bear survive in the desert?: Its thick fur and fat layer (insulation for -40°C) would cause overheating in desert heat. It also can't find seals to eat!
What adaptation helps a cactus survive in the desert?: Thick waxy skin to prevent water loss, spines instead of leaves (less surface area), and a large root system to absorb rare rainfall.