467 questions and answers in this section
Explain why ostriches bury their head in the sand.

Explain why ostriches bury their head in the sand.

This misconception that the ostrich buries its head in the sand probably dates back to antiquity. Pliny the Elder, a well-known Roman naturalist, already described...

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Explain why a kiwi has a hairy skin.

Explain why a kiwi has a hairy skin.

The kiwi originally comes from a wild plant growing in relatively cool and humid forested regions of China, an environment conducive to mold. To avoid...

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Explain why sargassum seaweed is invading the coasts?

Explain why sargassum seaweed is invading the coasts?

The large invasions of sargassum often begin in the heart of the North Atlantic, specifically in an area called the Sargasso Sea. However, in recent...

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Explain why marine algae are an important source of biodiversity?

Explain why marine algae are an important source of biodiversity?

Marine algae form true underwater forests, providing shelter and food for a multitude of aquatic species. They protect juvenile fish and small creatures from predators...

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Explain why foxes have a bushy tail?

Explain why foxes have a bushy tail?

The bushy tail of foxes acts as a natural insulating blanket. Wrapped around their body and legs, it helps the fox retain its body heat...

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Explain why are hummingbirds the only birds capable of flying backwards?

Explain why are hummingbirds the only birds capable of flying backwards?

Hummingbirds have very atypical wings as they are long and narrow, in addition to being highly flexible at the base. This unique shape allows them...

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Explain why ancient civilizations believed in deities with animal heads.

Explain why ancient civilizations believed in deities with animal heads.

For ancient civilizations, animals often represented powerful and mysterious natural forces. Take the example of the Egyptians: they saw the falcon as a symbol of...

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Explain why the venom of some spiders can save lives?

Explain why the venom of some spiders can save lives?

In recent years, scientists have been closely studying spider venom because this natural cocktail contains thousands of very special small molecules. Some of these molecules...

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Explain why pandas often roll on themselves?

Explain why pandas often roll on themselves?

Giant pandas have a thick fur that is rather greasy, acting as a sort of "natural armor" against the moisture and cool temperatures of their...

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Explain why pandas need to eat a large amount of bamboo?

Explain why pandas need to eat a large amount of bamboo?

Bamboo grows quickly, making it an ultra-abundant resource for pandas. But it is quite poor in terms of essential nutrients like proteins, fats, or minerals. In the...

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