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Frog skin cells turned themselves into living machines Using blobs of skin cells from frog embryos, scientists have grown creatures unlike anything else on Earth, a new study reports. These microscopic “living machines” can swim, sweep up debris and heal themselves after a gash. Scientists …..
Octopus sleep includes a frenzied, colorful, ‘active’ stage Octopuses cycle through two stages of slumber, a new study reports. First comes quiet sleep, and then a shift to a twitchy, active sleep in which vibrant colors flash across the animals’ skin. These details, gleaned from …..
Some COVID-19 survivors face another foe: PTSD The sickest of COVID-19 patients struggle to breathe. Facing a disease new to science, they’re isolated from their loved ones and treated by doctors and nurses in hazmat suits. Now, a small study in Italy finds that nearly …..