
Animals
Sleeping glass frogs go into stealth mode by hiding red blood cells
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
By Susan Milius
Come explore with us!
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
Scientists thought the chemical oxytocin was required to make prairie voles mate. They were wrong.
Animals that go through metamorphosis look very different as adults than they did as kids.
Ayla was treated before birth for the rare, life-threatening Pompe disease. Now a thriving 16-month-old toddler, her treatments will still need to continue.
In Nintendo’s Splatoon game series, Inklings and Octolings duke it out with weapons that fire ink. How does this ink compare with that of real octopuses and squid?
Long, thin bacteria that conduct electricity may be able to help clean up oil spills and reduce emissions of methane, a powerful greenhouse gas.
The glymphatic system bathes the brain in cleansing fluids during sleep and clears away harmful cellular waste.
The genomes of salamanders are bloated with genetic “parasites.” That extra DNA slows down their lives and strands them in perpetual childhood.
Sea sponges rely on a sneezing technique to clear their pores. The mucus flushes out debris — and provides a snack for other marine life.
The pointy part of the inner elbow can break in arm wrestling, especially among teens whose bones are still growing.