Researchers mix cells from human adult gum tissue with tooth-inducing cells from mouse embryos to grow new hybrid teeth complete with roots.
Researchers mix cells from human adult gum tissue with tooth-inducing cells from mouse embryos to grow new hybrid teeth complete with roots.
Fossils of four new cetacean species have been discovered at a road construction site in California.
A fully-functional tooth grown from stem cells is successfully implanted into a mouse.
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