Spiders: Silent Giants Consuming as Much Prey Annually as Humanity Eats Meat and Fish

Beneath our feet and above our heads, the world's spiders conduct a predation enterprise so vast it rivals humanity's own appetite for meat and fish — yet it unfolds almost entirely beyond human notice. A peer-reviewed study published in 2017 estimated that spiders collectively kill between 400 and 800 million metric tons of prey each year, a figure that places them above whales and seabirds as the planet's most prolific predators by mass consumed. Working across forests, grasslands, and soils that humans rarely manage or observe, these animals perform essential ecological labor that civilizat