Life

Glowing Green Guts

To untangle the links between guts and brains, some scientists are starting small: with the tiny transparent worm C. Elegans, whose guts glow green and neurons glow orange in this composite illustration and microscope image.

Breakneck Bite

The jaws of trap-jaw ants can generate forces hundreds of times their body weight and snap shut at speeds reaching 145 miles per hour -- over 2,000 times faster than the blink of an eye.

Awakening a Sleeping Organ

The green ring of cells lining this fruit fly’s digestive tract normally lie dormant, but after injury they spring into action, growing and copying their DNA to help the fly’s gut heal. To repair damage, organs either make new cells to replace those that were lost, or enlarge the cells that remain.

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