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Spiders beat humans, whales by consuming upto 800 million tones of prey each year

Spiders beat humans, whales by consuming upto 800 million tones of prey each year

Researchers have revealed that spiders wipe out an estimated 400-800 million tonnes of prey every year, compared to an estimated 280-500 million tonnes of prey that the world's whales eat.

Agriculture didn't spur growth of human population

Agriculture didn't spur growth of human population

For their research, the scientists analysed radiocarbon dates from Wyoming and Colorado that were recovered predominantly from charcoal hearths, which provide a direct record of prehistoric human activity.

Black Death plagued humans since Bronze Age

It turns out the plague was plaguing humans far earlier than previously believed.New research using ancient DNA has revealed that plague has been endemic in human populations for more than twice as long as previously thought and that the ancestral plague would have been predominantly spread by human-to-human contact, until genetic mutations allowed Yersinia pestis (Y. pestis), the bacteria that causes plague, to survive in the gut of fleas.