With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, but the entire lineage was wiped out about 25 million years ago, leaving ...
Remington J. Moll, Patrick J. Jackson, Brian F. Wakeling, Carl W. Lackey, Jon P. Beckmann, Joshua J. Millspaugh and Robert A. Montgomery Apex predators can shape communities via cascading top–down ...
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