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安裝中文字典英文字典辭典工具!
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- NBN Atlas - UK’s largest collection of biodiversity information
The NBN Atlas holds more than 300 million species occurrence records Puffins, Isle of May ©John Sawyer The NBN Atlas enables UK biodiversity data to be shared, analysed and used for research
- Late Pleistocene extinctions - Wikipedia
The extinction's extreme bias towards larger animals further supports a relationship with human activity rather than climate change [144] There is evidence that the average size of mammalian fauna declined over the course of the Quaternary, [145] a phenomenon that was likely linked to disproportionate hunting of large animals by humans [5]
- This Simulation Maps the Rise and Fall of Species Over . . .
A growing list of South American plant and animal groups are now known to have diversified over the Late Quaternary Period – roughly the past 800,000 years – but most species on the continent
- Humans are driving animals and plants to the edge, but are we . . .
years ago to the estimated 8 7 million species alive today But as I describe in my book Extinctions: living and dying in the margin of error, this journey has been a roller coaster ride
- A visually stunning tree of life is available online - Earth. com
OneZoom is an interactive website, developed by a research team led by the University of Oxford and Imperial College London (ICL), that maps the evolutionary connections between 2 2 million living species, the closest thing until now to a single view of all the known plant and animal species The digital tree of life also includes images of
- 5. 5 Preserving Biodiversity | Environmental Biology
For example, if there are 10 million species in existence, then we would expect 10 of those species to become extinct in a year This is the background rate One contemporary extinction-rate estimate uses the extinctions in the written record since the year 1500
- Extinct species, facts and information | National Geographic
The truth is, scientists don’t know how many species of plants, animals, fungi, and bacteria exist on Earth The most recent estimate put that number at 2 billion, and that will most likely
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