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19 de oct. de 2023 · When a species disappears, biologists say that the species has become extinct. By making room for new species, extinction helps drive the evolution of life. Over long periods of time, the number of species becoming extinct can remain fairly constant, meaning that an average number of species go extinct each year, century, or millennium.
13 de ene. de 2021 · January 13, 2021. 10 min read. What We’ve Lost: The Species Declared Extinct in 2020. Dozens of frogs, fish, orchids and other species—many unseen for decades—may no longer exist because of...
5 de feb. de 2019 · Extinctions happen when a species dies out from cataclysmic events, evolutionary problems, or human interference. February 05, 2019. • 4 min read. The truth is, scientists don’t know how many...
6 de may. de 2019 · 06 May 2019. Update 06 May 2019. Humans are driving one million species to extinction. Landmark United Nations-backed report finds that agriculture is one of the biggest threats to Earth’s...
6 de may. de 2019 · NEWS. One million species at risk of extinction, UN report warns. A landmark global assessment warns that the window is closing to safeguard biodiversity and a healthy planet. Yet solutions are...
23 de abr. de 2024 · Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
WWF is committed to saving endangered species. Learn more about the species we are working to protecting from becoming endangered or extinct.
