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fish

Life

Fish size themselves up in a mirror to decide if they can win a fight

Cleaner wrasse use their reflection to build a mental image of their body size, which they use to compare themselves to rivals before picking a fight

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Sharks leap out of the water more often than you might think

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Endangered skates saved from extinction by hatching in captivity

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Designed robotic tunafish featuring the morphing (first) dorsal fin https://arxiv.org/abs/2407.18843v1

Technology

Robo-tuna reveals how foldable fins help the speedy fish manoeuvre

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Life

Exquisite fossils of Cretaceous shark solve mystery of how it hunted

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Environment

Marine protected areas aren't helping fish populations recover

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Blind cave fish offers lessons in how to survive starvation

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Life

Salmon farms are increasingly being hit by mass die-offs

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Bizarre fish can extend its mouth to make a kind of trunk

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How one of the smallest fish makes a sound as loud as a firecracker

The drumming sound of the 12-millimetre-long fish Danionella cerebrum can hit 140 decibels – now scientists have figured out how they do it

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Life

Deaths from shark attacks across the world doubled in 2023

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Life

Newborn great white shark possibly seen in the wild for the first time

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FIG. 1 Cannibal Pachycormus 32427 (color)_2 https://doi.org/10.1080/02724634.2023.2294000

Life

Exquisite Jurassic fossils reveal cannibalism in ancient fish

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Animal bones ground into an edible paste could help reduce food waste

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