467 questions and answers in this section
Explain why seahorses hold onto their tails.

Explain why seahorses hold onto their tails.

Seahorses have this intriguing behavior of holding onto each other's tails primarily to stay in place! Since their swimming is very slow, clinging together or...

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Explain why sharks never sleep.

Explain why sharks never sleep.

Unlike us, sharks do not have the ability to actively swallow water. For oxygen to reach their gills, many sharks must constantly swim with their...

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Explain why walruses have such a large amount of subcutaneous fat?

Explain why walruses have such a large amount of subcutaneous fat?

Walruses live in icy waters, where temperatures can easily drop below 0 °C. To avoid freezing to death, they rely on a thick layer of...

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Explain why seahorses use their tail to cling?

Explain why seahorses use their tail to cling?

The tail of seahorses is distinctive because, unlike that of many other fish, it is prehensile, meaning it can easily curl and grip. It has...

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Explain why rubbing your fingers together warms them up?

Explain why rubbing your fingers together warms them up?

When you rub your fingers together, you exert a mechanical force. This action creates a resistance called friction, which opposes motion. As a result, some...

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Explain why kangaroos do not need to drink water?

Explain why kangaroos do not need to drink water?

Kangaroos have a dense fur that helps them effectively protect themselves from the scorching sun, thus limiting sweating and water loss. Their narrow nostrils and...

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Explain why seahorses have a prehensile tail?

Explain why seahorses have a prehensile tail?

The prehensile tail of seahorses has developed to perfectly suit their unique aquatic environment. Unlike most fish, the seahorse is a rather poor swimmer. It...

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Explain why the lemurs of Madagascar are found nowhere else.

Explain why the lemurs of Madagascar are found nowhere else.

Madagascar is a large island isolated from mainland Africa by the Mozambique Channel, about 400 kilometers of salt water. This distance acts as a natural...

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Explain why did the Aztecs sacrifice captives?

Explain why did the Aztecs sacrifice captives?

For the Aztecs, sacrificing humans was linked to a fundamental belief: the gods needed human blood to continue organizing the world and ensuring that the...

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Explain why some electric fish can paralyze their prey.

Explain why some electric fish can paralyze their prey.

Some fish, such as the electric eel, possess specific electric organs capable of delivering powerful shocks. These organs are made up of thousands of small...

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