Scientists discover how ancient animals first moved to land

科學家發現古老動物如何首次遷移至陸地

Imagine the Devonian period, about 390 million years ago—a world of shallow, oxygen-poor swamps.

想像一下泥盆紀,大約在三億九千萬年前——一個充斥著淺水與缺氧沼澤的世界。

eventDevonian

Primitive lungs evolved, and fins slowly transformed into robust limbs.

原始的肺部演化出來,魚鰭也慢慢轉變為強壯的肢體。

otherlung
otherfin
otherlimb

Fossils like the famous Tiktaalik reveal a unique "fishapod," a hybrid creature with both gills and a load-bearing pelvis.

像著名的提塔利克魚這樣的化石,揭示了一種獨特的「魚足類」生物,這是一種兼具魚鰓與承重骨盆的雜交生物。

otherTiktaalik
conceptfishapod
othergill
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Recent studies show that this evolution was surprisingly fast, with lineages experiencing rapid physical changes over 30 million years.

近期研究表明,這種演化速度快得驚人,各譜系在三千萬年間經歷了快速的身體變化。

conceptevolution

Furthermore, genetic research highlights "convergent evolution," proving that nature often hits upon the same solutions for terrestrial challenges like dehydration.

此外,基因研究突顯了「趨同演化」,證明大自然常對脫水等陸地挑戰提出相同的解決方案。

conceptconvergent evolution
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文章閱讀結束

你閱讀了 5 句重點內容。

挑戰模式

閱讀理解

What was a primary environmental driver for the transition to land?

正確答案

The presence of oxygen-poor, shrinking pools

Which fossil is described as a 'fishapod' possessing both gills and a load-bearing pelvis?

正確答案

Tiktaalik

How does the article describe the speed of anatomical change during the move to land?

正確答案

Surprisingly fast, occurring over 30 million years

What does the concept of 'convergent evolution' imply in this context?

正確答案

That nature often finds similar genetic solutions to common challenges

What structure did early lungs evolve from?

正確答案

Swim bladders

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