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"This is actually the third extinct plant that Mr Stroud has rediscovered and, for him, it is an ongoing and very personal mission. "There's never a time that I'm not actually looking fort these species because, we say they're extinct, but I believe they are there," he said. "It's so satisfying, bringing a plant back from the brink of extinction.""

"Scientists in Russia have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago. The fruit was found in the banks of the Kolyma River in Siberia, a top site for people looking for mammoth bones."

It's the ultimate form of solar power: eat a plant, become photosynthetic. Now researchers have found how one animal does just that.

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"The team from the French National Institute for Agricultural Research (INRA) surveyed the composition of plant species within five-metre SGS in 10 fields and found the set-aside land resulted in a "sharp decrease" in the number of weeds encroaching into the cropped area."

"In particular, rapid swings in the density of plants and fleas indicated the food web was unstable and about to change. The idea that such early warning signals ought to exist is not new - but the researchers say this is the first time it has been demonstrated experimentally. "For a long time, ecologists thought these changes couldn't be predicted," said research leader Stephen Carpenter from the University of Wisconsin in Madison, US. "But we've now shown that they can be foreseen. The early warning is clear; it is a strong signal.""

"Resources: Issues Habitat Conservation Invasive Alien Species Pollination"

"Seagrasses around the world are disappearing, with some species now threatened with extinction. The first global survey of individual seagrass species has found that 14% are at risk of going extinct."