The braincase of a skull may well be, as advertised, a strongly built and cleverly engineered structure, but listening to all that incessant banging coming from the direction of the crab apple tree in the garden, one has to wonder: is it really strong enough to keep a woodpecker from having the most terrible headache?…
Another study casts doubt on the famous arsenic-life findings, showing the bacterium actually grabs phosphorus wherever it can be found.
A “punk-sized” dinosaur with porcupine-like bristles featured some flashy stabbing self-sharpening fangs – although it likely only had a taste for plants. The newly identified dinosaur, named Pegomastax africanus, or “thick jaw from Africa,” was a mere two feet long and weighed less than a modern housecat in the flesh. Its remains were chipped out…
Planktons constitute 98% of the ocean world and a group of researchers, after studying these in detail, believes that future oceanic changes would help in knowing which species of these would probably become extinct or migrate. Because these microscopic marine life forms, though very very small, contribute to the generation of oxygen on the planet…
Microorganisms that crashed to Earth embedded in the fragments of distant planets might have been the sprouts of life on this one, according to new research from Princeton Univ., the Univ. of Arizona and the Centro de Astrobiología in Spain. The researchers report in the journal Astrobiology that under certain conditions there is a high…
Researchers at the University of Washington have determined that “some” microbial life migrated from the Earth’s oceans to land some 2.75 billion years ago. However, a number of scientists continue to hypothesize that such land-based life was limited – at least initially – because the ozone layer that shields against ultraviolet radiation didn’t form until…
A new study, published online in Biology Letters, has utilized a massive molecular dataset to reconstruct the evolutionary history of lizards and snakes. The results reveal a surprising finding about the evolution of snakes: that most snakes we see living on the surface today arose from ancestors that lived underground. The study was based on…
In an effort to better understand how life started on Earth, researchers at NASA’s Jet Propulsion Laboratory are cooking up icy concoctions of organisms (carbon-bearing molecules) then zapping them with lasers. The JPL crew’s experiments also provide the first direct look at the organic chemistry that takes place in the chilly regions of our solar…
A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding a fourth major branch to the three that most scientists agree represent the fundamental domains of life. The new findings…
New research indicates that life might be able to survive on some of the odder exoplanets discovered so far – from scorching hot worlds with molten surfaces to freezing balls of ice. Habitable planets are usually defined as those where liquid water can exist. But not all exoplanets orbit, like Earth, at a fairly constant…