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35 subjects · 297 entries
Animal Behavior
19601960
1entry
Latest change hereCulture and socially transmitted traditions are unique to humans.
Open Animal Behavior →Archaeology
18152022
7entries
Latest change hereChickens were first domesticated in the Indian subcontinent.
Open Archaeology →Astrochemistry
19681980
2entries
Latest change hereLarge organic molecules cannot form or survive in the harsh environment of space.
Open Astrochemistry →Astronomy
350 BCE2025
32entries
Latest change hereThe Milky Way is destined to collide and merge with the Andromeda galaxy.
Open Astronomy →Atmospheric Science
19192021
3entries
Latest change hereEquilibrium climate sensitivity to doubled atmospheric CO₂ is likely between 1.5°C and 4.5°C.
Open Atmospheric Science →Biochemistry
19821982
2entries
Latest change hereOnly proteins can act as enzymes or biological catalysts.
Open Biochemistry →Biology
17802016
10entries
Latest change hereBacterial cells in the human body outnumber human cells by about ten to one.
Open Biology →Botany
16942023
4entries
Latest change hereFibonacci leaf spirals were an ancient pattern inherited from the earliest leafy land plants.
Open Botany →Cell Biology
19721972
1entry
Latest change hereCell membranes are static protein–lipid–protein sandwiches.
Open Cell Biology →Chemistry
17741985
16entries
Latest change hereCarbon has only two true crystalline forms: diamond and graphite.
Open Chemistry →Cosmology
19751985
2entries
Latest change hereGalaxies are scattered through the universe more or less randomly.
Open Cosmology →Earth Science
14501995
21entries
Latest change hereVolcanic hotspots are perfectly fixed points in the mantle and therefore provide an absolute reference frame for plate motion.
Open Earth Science →Ecology
19392021
6entries
Latest change hereWoody plants obtain their water mainly from soil and use water stored in bedrock only as an emergency reserve during severe drought.
Open Ecology →Environmental Science
19622021
2entries
Latest change hereThe Amazon rainforest was broadly a net carbon sink across the basin.
Open Environmental Science →Evolution
19002022
9entries
Latest change hereEarly tetrapods grew slowly or moderately, like modern amphibians; rapid juvenile growth evolved later with amniotes.
Open Evolution →Genetics
19102012
13entries
Latest change hereEvery cell in one person's body contains exactly the same DNA sequence.
Open Genetics →Geology
20222022
1entry
Latest change hereGermany's Ries and Steinheim craters were formed at the same time by a binary asteroid impact.
Open Geology →Human Evolution
19242021
9entries
Latest change hereSecure human occupation of North America began only after the Last Glacial Maximum.
Open Human Evolution →Immunology
19561956
1entry
Latest change hereImmune tolerance was thought to prevent self-directed immune reactions from becoming a major cause of disease.
Open Immunology →Materials Science
19812004
3entries
Latest change hereA stable material only one atom thick cannot exist on its own.
Open Materials Science →Measurement
19602019
3entries
Latest change hereA kilogram must be defined by the mass of one particular metal cylinder.
Open Measurement →Medicine
1702017
60entries
Latest change hereEvery patient having a heart attack should receive supplemental oxygen, even when blood oxygen is normal.
Open Medicine →Microbiology
19772022
6entries
Latest change hereEuropean mecC-MRSA lineages arose during the modern antibiotic era because medical or veterinary antibiotic use selected for methicillin resistance.
Open Microbiology →Neuroscience
19522015
9entries
Latest change hereThe central nervous system has no conventional lymphatic vessels.
Open Neuroscience →Ocean Science
18421995
6entries
Latest change hereReported rogue waves are physically impossible exaggerations by sailors.
Open Ocean Science →Oceanography
19931993
1entry
Latest change hereOpen-ocean regions rich in nitrate and phosphate were thought to contain enough iron that iron deficiency could not explain their low phytoplankton productivity.
Open Oceanography →Paleoclimate
19841984
1entry
Latest change hereAntarctica has always been a frozen, treeless continent.
Open Paleoclimate →Paleontology
19692025
7entries
Latest change hereNanotyrannus fossils are juvenile Tyrannosaurus rex rather than a distinct small-bodied tyrannosaur.
Open Paleontology →Physics
12501998
26entries
Latest change hereNeutrinos are massless.
Open Physics →Planetary Science
19512023
12entries
Latest change hereLong-lived dense planetary rings can survive only inside their parent body’s Roche limit.
Open Planetary Science →Psychology
19321960
4entries
Latest change hereExpressing anger aggressively drains it and reduces later aggression.
Open Psychology →Public Health
19502024
6entries
Latest change hereRespiratory particles can be divided into “droplets” and “aerosols” using one fixed particle-size cutoff.
Open Public Health →Technology
17611900
2entries
Latest change hereAn earthquake's source cannot be located unless observers are near the place where it occurs.
Open Technology →Virology
20032003
1entry
Latest change hereViruses are always much smaller and genetically simpler than bacteria.
Open Virology →Zoology
17532024
8entries
Latest change hereThe king cobra is one widespread species, Ophiophagus hannah, found across South and Southeast Asia.
Open Zoology →