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The Oldest Animal Species Still Living Today

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The Oldest Animal Species Still Living Today

1 / 10

What New Zealand reptile a “living fossil” has a third eye from 250 million years ago?

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2 / 10

Which bony fish prized for caviar has swum for 200 million years?

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3 / 10

What crustacean resembling a tadpole has dug ponds for 200 million years?

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4 / 10

Which shark species with a frilled look dates back 150 million years?

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5 / 10

What deep-sea fish thought extinct until 1938 has lobed fins from 400 million years ago?

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6 / 10

Which armored “crab” with blue blood has lived over 450 million years?

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7 / 10

What shelled cephalopod has drifted for 500 million years with a chambered shell?

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8 / 10

Which comb-like swimmer may be the earliest animal lineage emerging 700 million years ago?

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9 / 10

What jelly-like animal has floated in oceans for about 550 million years without a brain?

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10 / 10

Which ocean creature alive for over 600 million years filters water through its porous body?

Did you know that one of the oldest animal species still living today is the horseshoe crab?

These incredible creatures have been around for over 450 million years, outlasting even the dinosaurs.

Despite their name, horseshoe crabs are more closely related to spiders and scorpions than to true crabs.

Their hard, dome-shaped shells and unique, blue blood have fascinated scientists for decades.

The blood contains a substance called Limulus Amebocyte Lysate (LAL), which is crucial for detecting bacterial contamination in medical applications.

Horseshoe crabs play a vital role in coastal ecosystems, serving as a key food source for migratory birds and other marine animals.

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Their resilience and adaptability make them a living testament to the wonders of ancient life on Earth.

How did you do on the quiz? Share your results and thoughts in the comments below!

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