When did the Galápagos tortoises become giant?
Researchers analyzed new fossils from Ecuador that suggested the ancestors of Galápagos giant tortoises inhabited northern South America…
Category: Biology
Exercise boosts tumor-killing immune cells
Scientists showed that breast cancer patients who exercised for 30 minutes had more tumor-killing immune cells in their bloodstreams.
This new adrenal cell makes mice better parents
Scientists found a new type of cell in the adrenal glands of monogamous mice that promotes parenting behaviors.
Spinal stimulation helps stroke patients hit their stride
Researchers combined spinal cord stimulation with walking exercises to improve stroke survivors’ balance, walking symmetry, speed, and…
How complex life arose under extreme stress
Scientists discovered molecules that helped the first complex life forms build strong cell membranes to withstand extreme environments.
Could tardigrades survive on Mars?
Researchers found tiny, indestructible “water bears” survived exposure to high levels of toxic salts similar to those found in Martian…
An interactive virtual assistant for cancer research
Scientists developed an Alexa-based virtual assistant to help researchers and clinicians understand and interpret cancer genome data.
Researchers used bottled “lightning” to make ingredients for life
Scientists used spark discharge experiments to test whether lightning converted enough nitrogen to a usable form to support the origins of…
How quickly did life recover from the end-Permian mass extinction?
Paleontologists described exceptionally well-preserved fossils of a complex marine ecosystem that developed within 1 million years of a…
How did nautiloids survive extinction?
Researchers found nautiloids outlived other shelly creatures in the late-Cretaceous extinction because they had slower metabolisms.