465 questions and answers in this section
Explain why do jellyfish have almost no skeletal structure?

Explain why do jellyfish have almost no skeletal structure?

Unlike fish or marine mammals, jellyfish simply do not have any bones or rigid structure inside. Their body support depends solely on the pressure of...

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Explain why can cuttlefish and octopuses change color so quickly?

Explain why can cuttlefish and octopuses change color so quickly?

The skin of these marine animals has thousands of special small cells called chromatophores. Each chromatophore is a kind of sac filled with colored pigments...

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Explain why kakapos are unable to fly?

Explain why kakapos are unable to fly?

The kakapo is a parrot with quite an astonishing build: massive and sturdy, it can weigh up to 4 kilograms, making it the heaviest parrot...

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Explain why the migratory movements of monarch butterflies are so unique?

Explain why the migratory movements of monarch butterflies are so unique?

The migration of monarch butterflies is special because it does not occur in a single generation, but rather over several successive generations. The monarchs leave...

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Explain why are marsupials mainly found in Australia?

Explain why are marsupials mainly found in Australia?

Marsupials were once present on several continents before the gradual separation of the land about 150 million years ago. At that time, the continents formed...

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Explain why termites are considered natural architects?

Explain why termites are considered natural architects?

Termites are construction pros: their mounds naturally follow several architectural principles that we use in our own buildings. For example, the slender and slightly conical...

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Explain why do fish need dissolved oxygen in water to survive?

Explain why do fish need dissolved oxygen in water to survive?

Just like us, fish need oxygen to function. But unlike us, they extract this oxygen directly from the water through their gills. The dissolved oxygen...

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Explain why do butterflies only live for a few weeks?

Explain why do butterflies only live for a few weeks?

The adult life of many butterflies revolves essentially around a single specific task: reproduction. They emerge from their cocoon with a very limited time to...

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Explain why some seeds only germinate after being eaten by animals?

Explain why some seeds only germinate after being eaten by animals?

Some seeds are unable to germinate until they have taken a little trip through the digestive system of an animal. Yes, the digestive juices and...

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Explain why is the city of Kasanka (in Zambia) the scene of a massive bat migration?

Explain why is the city of Kasanka (in Zambia) the scene of a massive bat migration?

Kasanka stands out due to its unique combination of varied ecosystems including wetlands, lush forests, and peaceful waterways. This diversity creates the perfect environment to...

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