Role of sea urchins on California kelp

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California sheephead and spiny lobsters may be helping control sea urchin populations in Southern California kelp forests, where sea otters -- a top urchin predator -- have long been missing, according to a new study. The research provides new insight into the complex predator-prey relationships in kelp forests that can be seen in the absence of sea otters.

from Sea Life News -- ScienceDaily https://ift.tt/2T5vUKX

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Honey bee parasites, varroa mites, feed on fatty organs, not blood

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