Jellyfish Sleep, Too – Researchers didn't know if animals without a brain needed to sleep. Jellyfish, with their decentralized nervous system, provided the answer.

Source: Ravi D. Nath, et al. The Jellyfish Cassiopea Exhibits a Sleep-like State. Current Biology, 2017.

Nerve implant 'restores consciousness' to man in vegetative state – Stimulation of the vagus nerve allows patient who has been in a vegetative state for 15 years to track objects with his eyes and respond to simple requests

Source: Martina Corazzol, et al. Restoring consciousness with vagus nerve stimulation. Current Biology, 2017.

Scientists Remove Genes from Human Embryo for First Time – While it’s easy to think that humans are knee-deep in the wilds of genetic engineering, but we’re actually only in its nascent stages with new milestones coming all the time. That said, a …

Source: Norah M. E. Fogarty, et al. Genome editing reveals a role for OCT4 in human embryogenesis. Nature, 2017.

Highest-energy cosmic rays have extragalactic origin – La région présentant un excès de rayons cosmiques est entourée. Le centre galactique est au centre de l’ellipse.

Source: Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 × 10 18 eV. Science, 2017.

Quantifying Drug Use With Sewage and Cell Phones – By cross-referencing where drugs are found with where people are, researchers get a better idea of what drug use looks like.

Source: Kevin V. Thomas, Arturo Amador, Jose Antonio Baz-Lomba, Malcolm Reid. Use of Mobile Device Data To Better Estimate Dynamic Population Size for Wastewater-Based Epidemiology. Environmental Science & Technology, 2017.

New hermit crab uses live coral as its home – A new hermit crab species can live in a walking coral's cavity in a reciprocal relationship, replacing the usual marine worm partner, according to a new study.

Source: Momoko Igawa, Makoto Kato, Erik V. Thuesen. A new species of hermit crab, Diogenes heteropsammicola (Crustacea, Decapoda, Anomura, Diogenidae), replaces a mutualistic sipunculan in a walking coral symbiosis. PLOS ONE, 2017.

Trilobite Tummies Revealed in New Fossils – New fossils preserve the trilobite digestive tract in exceptional detail.

Source: Melanie J. Hopkins, Feiyang Chen, Shixue Hu, Zhifei Zhang, Steffen Kiel. The oldest known digestive system consisting of both paired digestive glands and a crop from exceptionally preserved trilobites of the Guanshan Biota (Early Cambrian, China). PLOS ONE, 2017.