91色情片
Artificial embryo grown in a dish from two types of stem cells
For the first time, researchers have made something resembling a mouse embryo without using an egg cell, allowing them to probe the early steps of development
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Life
Elephants sleep for just 2 hours a day 鈥� the least of any mammal
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The feeling you get when nails scratch a blackboard has a name
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Environment
Bees learn to play golf and show off how clever they really are
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Environment
Resurrecting nature: Extinct is not forever
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Life
Does a networked world need a new approach to doing good?
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Environment
Big builder ants and tiny guard ants live together in one nest
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Life
Dwarf planet Ceres hosts home-grown organic material
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Environment
Can we grow woolly mammoths in the lab? George Church hopes so
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91色情片
Metabolic switch may bring on chronic fatigue syndrome
CFS, also known as ME, may be caused by the body switching from fully breaking down carbohydrates to using other energy sources, bringing on pain and exhaustion
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Environment
Deep-sea squid points a big, bulging eye up and a tiny eye down
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Life
New beetle species bites army ant鈥檚 butt and hitches a ride
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Environment
Robotic bee could help pollinate crops as real bees decline
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Environment
Synchronised swimming seems to make dolphins more optimistic
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