Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploid embryonic stem ...
Cell & Microbiology
Apr 26, 2012
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A new study offers compelling genetic evidence that head and body lice are the same species. The finding is of special interest because body lice can transmit deadly bacterial diseases, while head lice do not.
Plants & Animals
Apr 9, 2012
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Princeton scientists have identified genes responsible for controlling reproductive life span in worms and found they may control genes regulating similar functions in humans.
Biotechnology
Oct 22, 2010
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University of Pennsylvania biologists studying human reproduction have identified what is likely the major contributing factor to the maternal age-associated increase in aneuploidy, the term for an abnormal number of chromosomes ...
Cell & Microbiology
Sep 8, 2010
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South Korea on Wednesday conditionally lifted a ban on stem cell research using human eggs, three years after outlawing the practice because a scientist was found to have faked his work.
Biotechnology
Apr 29, 2009
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Since the cloning of Dolly the Sheep over a decade ago, somatic cell nuclear transfer (SCNT) has been considered a promising way to generate human, patient-specific stem cells for therapeutic applications. The shortage of ...
Feb 2, 2009
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Climate crises, nuclear Armageddon, or a sudden meteor strike—it's clear humanity could do with Planet B. But first we need to learn to reproduce safely in space, says Dutch entrepreneur Egbert Edelbroek.
Space Exploration
Nov 14, 2023
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151
We know that sharks are voracious eaters, but what do we know about the source of its microbiome? To date, not much. But a recent study from the University of Chicago and the Marine Biological Laboratory (MBL) fills a gap ...
Plants & Animals
Dec 8, 2021
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8
Not all species need sperm to fertilize an egg for sexual reproduction. Some species need sperm in order to induce completion of egg nucleus development, but then never use the sperm's DNA. I describe how this self-sexual ...
Plants & Animals
Feb 19, 2021
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7
Leatherback turtle (Dermochelys coriacea) eggs laid in Bocas del Toro nesting beaches in the Panamanian Caribbean may be harmful to consumers. According to a study by the Smithsonian Tropical Research Institute (STRI) and ...
Ecology
Jan 10, 2020
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