Why poison frogs don't poison themselves

sciencedaily.com – Poison frogs harbor some of the most potent neurotoxins we know, yet scientists have long wondered -- how do these frogs keep from poisoning themselves? Scientists are now a step closer to resolving that head-scratcher. And the answer has potential consequences for the fight against pain and addiction.

Source: Rebecca D. Tarvin, et al. Interacting amino acid replacements allow poison frogs to evolve epibatidine resistance. Science, 2017.

A microneedle skin patch could help melt fat off your body

digitaltrends.com – The microneedle skin patch deliver a fat-shrinking drug to specific regions that are a bit more thick than desired.

Source: Yuqi Zhang, et al. Locally Induced Adipose Tissue Browning by Microneedle Patch for Obesity Treatment. ACS Nano, 2017.

What a biologist learned after letting an electric eel zap him

zmescience.com – It's like getting tasered -- nine times. At the same time. Professor Catania has the measurements to prove it.

Source: Kenneth C. Catania. Power Transfer to a Human during an Electric Eel’s Shocking Leap. Current Biology, 2017.

Don't Give Up! Babies Learn Persistence from Adults

discovermagazine.com – The next time you’re struggling to open a jar and want to curse it open, just keep plugging along — you might just be teaching a kid persistence.

Source: Julia A. Leonard, Yuna Lee, Laura E. Schulz. Infants make more attempts to achieve a goal when they see adults persist. Science, 2017.

Big herbivorous dinosaurs ate crustaceans as a side dish

sciencedaily.com – Some big plant-eating dinosaurs roaming present-day Utah some 75 million years ago were slurping up crustaceans on the side, a behavior that may have been tied to reproductive activities, says a new study.

Source: Karen Chin, Rodney M. Feldmann, Jessica N. Tashman. Consumption of crustaceans by megaherbivorous dinosaurs: dietary flexibility and dinosaur life history strategies. Scientific Reports, 2017.

Innovative suction robot is designed to hitchhike on the side of a shark

digitaltrends.com – A robot designed by engineers in China and the U.S. could hitch a ride on the side of a shark to either save on energy or help track them.

Source: Yueping Wang, et al. A biorobotic adhesive disc for underwater hitchhiking inspired by the remora suckerfish. Science Robotics, 2017.

Huge space rocks could have helped start Earth’s plate tectonics

newscientist.com – Nobody knows how or why plate tectonics got started on Earth. But new evidence suggest collisions with space rocks millions of years ago may have something to do with it

Source: Nicolas D. Greber, et al. Titanium isotopic evidence for felsic crust and plate tectonics 3.5 billion years ago. Science, 2017.

Ancient meteorite impact triggered highest surface temperature in Earth's history

upi.com – Researchers have discovered evidence of an ancient meteorite impact, a collision scientists say is responsible for the highest temperature recorded on Earth.

Source: Nicholas E. Timms, et al. Cubic zirconia in >2370 °C impact melt records Earth's hottest crust. Earth and Planetary Science Letters, 2017.

New evidence of Viking warrior women might not be what it seems

arstechnica.com – Experts cast doubt on a recent DNA discovery in a mysterious Swedish grave.

Source: Charlotte Hedenstierna-Jonson, et al. A female Viking warrior confirmed by genomics. American Journal of Physical Anthropology, 2017.

Scientists Have Found Thousands of New Microbial Communities That Live in 'Healthy' People

vice.com – They incidentally found 54 bacterial species—as well as fungi and viruses—we didn't know lived inside us.

Source: Jason Lloyd-Price, et al. Strains, functions and dynamics in the expanded Human Microbiome Project. Nature, 2017.