Life on Earth is anything but predictable. For evidence, look no further than the five mass extinctions that have occurred over the past 500 million years: Even in the midst of widespread ...

The four previous mass extinctions were also thought to have involved climatic changes—due to large-scale volcanic eruptions, for example—and in one case obliterated all but 5 percent of species. (See ...

Global warming is producing a rapid loss of plant species—according to estimates, roughly 600 plant species have died out ...

Less than 5 percent of the animal species in the seas ... to identify the killer responsible for the largest of the many mass extinctions that have struck the planet. The most famous die-off ...

Now standing at 5.7 billion and growing at a rate of 1. ... in the face of the current mass extinction. But thousands of others, many never known to science, are likely to perish.

But sometimes a mass extinction can happen very ... How discriminatory rules ran one 9-year-old girl out of the game 5 Things Longevity Researchers Do Every Day to Live Longer and Healthier ...

Nature Ecology and Evolution 5 (8): 1145–52. Cardeñosa ... "The Misunderstood Sixth Mass Extinction." Science 360 (6393): 1080–81. Ceballos, Gerardo, Paul R. Ehrlich, and Peter H. Raven. 2020.

The current mass extinction differs from all others in being driven by a ... 4 billion in 1975, and over 7.5 billion today. If the current course is not altered, we’ll reach 8 billion by 2020 and 9 to ...

which is considered to be the last major mass extinction event before today. This comparison can offer an inkling of what might await us in the future. Global warming is producing a rapid loss of ...