A ball of active components changed its gait when rolling was no longer the useful way forward.
A dark naked mole-rat tunnel is crowded with squeaks, grunts, chirps, and colony-specific accents.
A piece of wood sank more than two kilometers, and a limpet no one had described was living on it.
At Looe Key, snorkelers put their ears underwater and find the reef has a soundtrack.
A muddy current can cross a threshold where scraping up more sediment makes it heavier, faster, and better at scraping up still more.
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