Forever chemicals or PFAS double in concentration as they move up the food chain, increasing risks for top predators.
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Explore the order of the food chain and its trophic levels
Breaking down the order of the food chain and explaining its trophic levels. Rob Gronkowski reveals he’s never spent any of ...
Long before whales and sharks, enormous marine reptiles dominated the oceans with unmatched power. Scientists have reconstructed a 130-million-year-old marine ecosystem from Colombia and found ...
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