Putting stem cells on pause

People are having children later than ever before. The average age of new parents in the United States has been rising for at least the past half century.

Embryonic development in slow motion

Roe deer are among the few mammals whose embryos go into a particularly long period of dormancy. Using modern molecular methods, ETH Zurich researchers have shown for the first time exactly what happens to the embryo during ...

Silkworm's brain determines diapause by thermal information

Diapause is a seasonal adaptation strategy of insects and animals in which biological functions are put on hold, such as insect eggs that remain dormant until conditions are more favorable to hatch. This is not a passive ...

How some mammals pause their pregnancies

How do some mammals postpone the development of their embryos to await better conditions for having offspring? A recent study at the UW Medicine Institute for Stem Cell and Regenerative Medicine explored this reproductive ...

Hydrogels can put stem cells to sleep

Unlike normal cells, stem cells are pluripotent—they can become any cell type, which makes them powerful potential treatments for diseases such as diabetes, leukemia and age-related blindness. However, maintaining this ...

Researchers induce freezing tolerance in fruit fly

(PhysOrg.com) -- Most of what is known about the ability of some cold blooded animals and several insects to survive having their body temperature fall below freezing has led to the conclusion that those organisms that can ...

Copepods eat their own weight belts

Scientists have solved the mystery of how tiny marine crustaceans called copepods regulate the rhythms of their life-cycle.

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