Study scientists examined the genes of the starlet sea anemone (Nematostella vectensis) shown here. Sea anemones are related to corals and jellyfish, and are composed of an outer skin armed with stinging cells (cnidocytes) and a tube shaped gut, with nothing in the middle. Credit: Photo courtesy of the Whitney Lab for Marine Bioscience When

This is a Polytrichum strictum moss peat formation. Credit: British Antarctic Survey By carefully analyzing a 150-year-old moss bank on the Antarctic Peninsula, researchers reporting in Current Biology, a Cell Press publication, on August 29 describe an unprecedented rate of ecological change since the 1960s driven by warming temperatures. “Whilst moss and amoebae may not

Human chromosomes are stained blue (DAPI) with ribosomal DNA in green (FISH probe). Credit: Image courtesy of Tamara Potapova, Ph.D. Research from the Stowers Institute provides evidence suggesting that cancer cells might streamline their genomes in order to proliferate more easily. The study, conducted in both human and mouse cells, shows that cancer genomes lose

Top left: Plant leaves. Top right: cultured cells of the diatom Phaeodactylum tricornutum. Image A: Electron micrograph of a plant chloroplast revealing its internal structure of grana (shown in yellow), where PSII predominates, and lamellae (shown in green), where PSI is concentrated. This organization is not found in diatoms (see image B). Image B: Micrograph

DNA arrays change shape in response to an external trigger. Credit: Yonggang Ke Biomedical engineers have built simple machines out of DNA, consisting of arrays whose units switch reversibly between two different shapes. The arrays’ inventors say they could be harnessed to make nanotech sensors or amplifiers. Potentially, they could be combined to form logic

Numbers on red branches from the first eutherian ancestor to Homo sapiens are the numbers of breakpoints in reconstructed ancestral chromosome fragments. Breakpoints are locations where a chromosome broke open, allowing for rearrangements. The number of breakpoints per million years is in parentheses. A total of 162 chromosomal breakpoints were identified between the eutherian ancestor

Chinlestegophis jenkinsi was a tiny subterranean carnivore and is an ancient relative of frogs and salamanders. Credit: Illustration by Jorge Gonzalez Researchers have determined that the fossils of an extinct species from the Triassic Period are the long-missing link that connects Kermit the Frog’s amphibian brethren to wormlike creatures with a backbone and two rows

Toe prosthesis of a female burial from the Theban tomb TT95, early first millennium BC. Egyptian Museum Cairo, JE100016a. Credit: University of Basel, LHTT. Image: Matjaž Kacicnik It is likely to be one of the oldest prosthetic devices in human history: Together with other experts, Egyptologists from the University of Basel have reexamined an artificial

Cats and humans have shared the same households for at least 9,000 years, but we still know very little about how our feline friends became domesticated. Credit: © Alta Oosthuizen / Fotolia Cats and humans have shared the same households for at least 9,000 years, but we still know very little about how our feline

Dr. Lan Ko, cancer biologist in the Department of Pathology at MCG at Augusta University and Dr. Ali S. Arbab, a tumor angiogenesis expert at the Georgia Cancer Center and the MCG Department of Biochemistry and Molecular Biology, was a major collaborator. Credit: Phil Jones While it’s widely held that tumors can produce blood vessels

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