sci-news.com – An international group of paleontologists has found two incomplete bones from an ancient parrot with a mass of 7 kg, double that of the heaviest known parrot, the kakapo (Strigops habroptila).
Source: Trevor H. Worthy, Suzanne J. Hand, Michael Archer, R. Paul Scofield, Vanesa L. De Pietri. Evidence for a giant parrot from the Early Miocene of New Zealand. Biology Letters, 2019.
Source: J. C. Kasper, et al. Alfvénic velocity spikes and rotational flows in the near-Sun solar wind. Nature, 2019.
Source: D. J. McComas, et al. Probing the energetic particle environment near the Sun. Nature, 2019.
Source: S. D. Bale, et al. Highly structured slow solar wind emerging from an equatorial coronal hole. Nature, 2019.
cbc.ca – About 1,500 light years away lies the remnant of a star that was once like our own, and it's providing astronomers with clues as to what might happen in our solar system after the sun dies.
Source: Boris T. Gänsicke, et al. Accretion of a giant planet onto a white dwarf star. Nature, 2019.
nytimes.com – Scientists have developed an explanation for one of the most striking features of Enceladus, an ocean world that has the right ingredients for life.
Source: Douglas J. Hemingway, Maxwell L. Rudolph, Michael Manga. Cascading parallel fractures on Enceladus. Nature Astronomy, 2019.
the-scientist.com – An ancient animal’s hammer, anvil, and stirrup bones are at the base of the jaw but completely detached from it.
Source: Fangyuan Mao, et al. Integrated hearing and chewing modules decoupled in a Cretaceous stem therian mammal. Science, 2019.
Source: R. A. Howard, et al. Near-Sun observations of an F-corona decrease and K-corona fine structure. Nature, 2019.
the-scientist.com – The silicon chips receive and send electrical signals, recreating activity from neurons in the rat brain that play a role in breathing and thinking.
Source: Kamal Abu-Hassan, et al. Optimal solid state neurons. Nature Communications, 2019.
zmescience.com – It took more than 100 years to confirm that single-celled organisms are capable of hierarchical decision making.
Source: Joseph P. Dexter, Sudhakaran Prabakaran, Jeremy Gunawardena. A Complex Hierarchy of Avoidance Behaviors in a Single-Cell Eukaryote. Current Biology, 2019.
upi.com – New scientific findings suggest glacial meltwater helped eukaryotes survive Earth's most extreme ice age, so-called Snowball Earth.
Source: Maxwell A. Lechte, et al. Subglacial meltwater supported aerobic marine habitats during Snowball Earth. Proceedings of the National Academy of Sciences, 2019.