Latest Carl S. Thummel Stories
As day-old embryos, fruit flies called Drosophila enter a stage in which their cells freely divide and proliferate as the insect grows dramatically in size.
Tiny insects can shed light on human regulatory processes, U of U-led studies find.
Word of the Day
- A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.