For many of us, when we think of microbiomes, our first thoughts are probably about the beneficial microorganisms that live in our guts. But now, researchers from Japan and the US have discovered how the microbes living in ...
Cell & Microbiology
Dec 21, 2023
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1
It may soon be possible to coax human skin cells into becoming functional eggs and sperm using a technique known as "in vitro gametogenesis." This involves the creation (genesis) of eggs and sperm (gametes) outside the human ...
Cell & Microbiology
Dec 15, 2023
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9
In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a "fairy tale," rooted in cultural beliefs about ...
Social Sciences
Oct 1, 2023
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52
New research looks at navigation strategies for deformable micro-swimmers in a viscous fluid faced with drifts, strains, and other deformations.
Bio & Medicine
Jul 21, 2023
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2
Cancer is a complex systemic disease, with accompanying secondary effects that can result in debilitating effects on the human body. Cancer-associated skeletal muscle weakening or loss, also called "cancer cachexia," is a ...
Bio & Medicine
Apr 24, 2023
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8
In order to achieve good times in their races, many Olympic swimmers wear swimsuits that are low in water resistance. Similarly, spermatozoa, the male reproductive cells, possess a "streamlined" structure to travel more smoothly ...
Cell & Microbiology
Mar 13, 2023
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46
Scientists from Denmark and China have estimated germline mutation rates across vertebrates by sequencing and comparing genetic samples from 151 mother, father, and offspring trios from 68 species of mammals, fishes, birds ...
Different cell types—say, heart, liver, blood, and sperm cells—possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired. Without intervention, a ...
Cell & Microbiology
Feb 21, 2023
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66
Deep on the ocean floor, strange worm-like creatures can be found, the evolution of which has long perplexed scientists. Now, in a recently published study, researchers from Japan have observed an interesting mode of reproduction, ...
Plants & Animals
Feb 21, 2023
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98
The male reproductive system serves as a hotspot for the emergence of new genes. Perhaps that explains why more new mutations are inherited from fathers than from mothers. It doesn't, however, clarify why older fathers pass ...
Evolution
Jan 12, 2023
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46
