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Brittle Star Fossils Hint at Life Around an Ancient Whale Carcass

An ancient concentration of tiny remains may reveal an ecological link seen around dead whales today.

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Science news editorial illustration for Tiny Fossils Found Beside an Ancient Whale in Denmark

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The a and were in 2018. in to the , but were from .

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Source: Museum of Southern Jutland via Brightsurf, 2026-11-03.

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Try 2 questions about this story, then explain one idea in your own words. Check the text whenever you need to.

In this lesson: Evaluate spatial evidence for an ancient whale fall while separating association from diet.

Print a worksheet · Teacher guide & answers

Read and understand · 1/2Why are the samples farther from the bones important to the interpretation?

Read the answer and explanation

They provide a comparison showing the fragments were concentrated near the whale.. Absence in farther samples makes the near-bone pattern informative without proving where every animal lived or what it ate.

Clue: The team examined sediment collected when a beaked whale’s jaw and vertebrae were excavated in 2018. Brittle star fragments appeared in three samples taken next to the bones, but were absent from comparison samples farther away.

Read and understand · 2/2What makes “a possible ancient example” a careful description?

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The pattern supports a whale-fall interpretation, while exact diet is unknown.. The interpretation is based on association and is qualified by the limits of the fossil evidence.

Clue: The researchers suggest that the animals gathered on or near the whale after it died, a possible ancient example of a “whale fall”, where a carcass provides resources on the seabed. They caution that the fossils do not reveal the animals’ exact diet.

Grammar in this story: Contrast between sample locations

but were absent from comparison samples farther away

But contrasts two locations and their results. This contrast helps the reader understand why the sample pattern matters.

Your turn

Explain why finding brittle-star fragments near whale bones supports a whale-fall interpretation but does not identify a precise food source.

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The fragments occurred in three samples beside the bones and not in farther comparison samples, suggesting the animals gathered around the carcass. Their location does not reveal exactly which resources they consumed.

Your answer can be different. Give a reason and use your own words.

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