Questions Raised About How an Ancient Hominin Moved
Questions Raised About How an Ancient Hominin Moved
A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do.
Questions Raised About How an Ancient Hominin Moved
Questions Raised About How an Ancient Hominin Moved

A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do.

A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do.

evolution
SARS-CoV-2 with Genomic Deletions Escapes an Antibody
SARS-CoV-2 with Genomic Deletions Escapes an Antibody
Abby Olena | Feb 16, 2021
Researchers identify deletions in the N-terminal domain of the spike protein that allow the coronavirus to avoid antibody neutralization and that may contribute to the emergence of new variants.
Menstrual Cycles Intermittently Sync with Moon Cycles: Study
Menstrual Cycles Intermittently Sync with Moon Cycles: Study
Asher Jones | Feb 5, 2021
A long-term study finds that these rhythms align at certain times of women’s lives, shedding new light on the controversial idea that lunar phases influence human reproduction.
A Simple Genetic Change Adds Limb-Like Bones to Zebrafish Fins
A Simple Genetic Change Adds Limb-Like Bones to Zebrafish Fins
Abby Olena | Feb 5, 2021
A gain-of-function mutation in a single gene reveals ancient limb-forming capacity that has been preserved for hundreds of millions of years.
Naked Mole Rat Colonies Have Their Own Unique Dialects
Naked Mole Rat Colonies Have Their Own Unique Dialects
Amanda Heidt | Feb 4, 2021
Chirp dialects appear to be enforced by the colony’s queen, but scientists aren’t sure how. 
Specialized Leaves Keep This Plant’s Fruit Warm
Specialized Leaves Keep This Plant’s Fruit Warm
Shawna Williams | Feb 1, 2021
A volunteer nature guide teamed up with researchers to discover a unique reproductive role for one vine’s leaves.
Tardigrades’ List of Super Powers Grows Ever Longer
Tardigrades’ List of Super Powers Grows Ever Longer
Ashley Yeager | Jan 1, 2021
Water bears can survive extreme temperatures, oxidative stress, UV radiation, and more, but as work in climate change biology shows, they’re not invulnerable to everything.
Humans Domesticated Yeast Through Bread-Making: Study
Humans Domesticated Yeast Through Bread-Making: Study
Max Kozlov | Dec 11, 2020
Over centuries of cultivating Saccharomyces cerevisiae to make dough, bakers have put selective pressure on the species, causing it to diverge into two distinct groups, according to the authors.
Shrew Brains Shrink During Winter
Shrew Brains Shrink During Winter
Abby Olena | Dec 3, 2020
The animals kill off around one-quarter of the neurons in their somatosensory cortex, perhaps to save energy, and the cells appear to return the following summer.
Book Excerpt from <em>When Brains Dream</em>
Book Excerpt from When Brains Dream
Robert Stickgold, Antonio Zadra | Dec 1, 2020
Ferreting out the biological function of dreaming is a frontier in neuroscience.