15+ hour, 42+ min ago  (1000+ words) Traumatic experiences can cause memory problems, and estrogen may be a key factor that shapes the brain's resilience against such stressors, a mouse study finds. High estrogen in the brain's memory center may worsen one's resilience against traumatic events, swaying…...

16+ hour, 4+ min ago  (689+ words) Our ancient four-legged ancestors didn't have an amphibian-like life cycle when they began walking on land, according to a new study of rare fossils found near Chicago. Never-before-seen fossils of newly hatched crocodile-like creatures are shining new light on how…...

1+ day, 6+ hour ago  (559+ words) Genes inherited from the now-extinct Denisovans are actively playing a role in the immune system of some people from Oceania. Some people from Oceania harbor thousands of genetic variants inherited from the Denisovans " a mysterious group of extinct humans " that…...

1+ day, 8+ hour ago  (516+ words) Camera footage in Ukraine's Chernobyl exclusion zone revealed that mammals became less active " especially at night " during the Russian occupation, highlighting the war's immediate impact on wildlife. Camera traps from inside the Chernobyl exclusion zone reveal how the occupation of…...

1+ day, 12+ hour ago  (167+ words) From the sprawling Amazon to the lesser-known tropical forests, see if you can correctly rank these rainforests by their total area. Rainforests are some of the most important and diverse ecosystems on Earth. Found across several continents, these vast forests…...

9+ mon, 3+ day ago  (490+ words) When was it taken? Jan. 21, 2014 If these lakes are considered eyes, then their head is the Chiltepe Peninsula, a rounded landmass that extends into the waters of Lake Managua. Known locally as Lago Xolotl'n, it covers an area of around…...

2+ day, 8+ hour ago  (219+ words) This brings up another strange aspect of quantum mechanics: its probabilistic nature. Particles exist as a cloud of probabilities stretching to infinity. Until a particle is observed, its properties, such as its position or energy, are in a superposition of…...

2+ day, 8+ hour ago  (803+ words) The oldest known evidence of the plague killing people has been found in Siberia, and it carried a gene that may have made it particularly deadly for children. Hunter-gatherers in Siberia fell victim to lethal plague outbreaks around 5, 500 years ago,…...

2+ day, 11+ hour ago  (952+ words) Live Science spoke with animal researcher Andreas Nieder about how animals process mathematical concepts like statistical reasoning and the idea of zero. Corvids, including ravens and crows, have earned a reputation for being some of the smartest birds on Earth....

2+ day, 16+ hour ago  (625+ words) A woman could no longer recognize her father's face and had trouble holding the details of faces in her mind's eye. The patient: A 28-year-old woman in New Hampshire After her diagnosis, she did not seek further medical care due…...