Making babies: How to create human embryos with no egg or sperm
Elie Dolgin • April 11, 2018
Artificial wombs and embryos made from skin cells – remarkable new techniques could revolutionize reproductive biology and help bring an end to infertility.
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Scientists remain split on whether rope-pulling ingenuity counts as tool use.
It took nearly 50 years to work out the identity of a caribou-like fossil first discovered by construction workers.