Is hemp the same thing as marijuana?

There's been a lot of discussion about hemp recently, since the 2018 Farm Bill made it legal for farmers to grow industrial hemp for the first time since the passage of the 1970 Controlled Substances Act (or, practically ...

A new estimate of biodiversity on Earth

Anyone who has studied biology, watched a nature documentary, or, for that matter, simply enjoyed time in the outdoors, has likely been amazed by the variety of plant and animal life on our planet.

Life exploded on Earth after slow rise of oxygen

It took 100 million years for oxygen levels in the oceans and atmosphere to increase to the level that allowed the explosion of animal life on Earth about 600 million years ago, according to a UCL-led study funded by the ...

The last survivors of the end of the world

(Phys.org) —In 2 billion years' time, life on Earth will be confined to pockets of liquid water deep underground, according to PhD astrobiologist Jack O'Malley James of the University of St Andrews. The new research also ...

A small step for lungfish, a big step for the evolution of walking

(Phys.org) —The eel-like body and scrawny "limbs" of the African lungfish would appear to make it an unlikely innovator for locomotion. But its improbable walking behavior, newly described by University of Chicago scientists, ...

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