"Giant octopuses, sometimes referred to as krakens, might have grown to nearly 19 meters in length during the age of dinosaurs, based on fossilized jaws showing wear from consuming hard-shelled animals."
"In mice, the mechanical action of the heart beating was found to stop tumors from growing, which could explain the rarity of heart cancers across mammals."
"Researchers compared non-beating hearts transplanted onto mice with their native beating hearts, finding that the external hearts were quickly taken over by cancer cells after injection."
Giant octopuses, potentially reaching lengths of 19 meters, may have been apex predators in the Cretaceous period, alongside marine reptiles. Their size estimates are based on fossilized jaws showing wear patterns from consuming hard-shelled prey. In a separate study, the mechanical action of a beating heart was found to prevent tumor growth in mice, explaining the rarity of heart cancers. Non-beating hearts, however, were quickly overtaken by cancer cells, indicating a trade-off between heart function and regeneration.
Read at Nature
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