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All Stories by Priyanka Runwal
Spider silk doesn’t rot quickly because bacteria can’t access its nitrogen, a nutrient needed for the microbes’ growth, scientists say.
Piranhas and pacus both lose and replace all teeth on one side of their mouths in one go, which may help to distribute wear and tear.
Mounds of sand dug out by birds are hot spots for plants in Peru’s Atacama Desert, possibly providing a sheltered and moist area for seed germination.