Could an intranasal COVID-19 vaccine be on the cards? Why are horseshoe crabs vital to the biotech industry? Find out in ScienceSeeker's picks of the best posts for the week of Jan 18 - Jan 24 2021 #SciSeekPicks #SciComm.

In this weeks edition of the best from the world of science news, meet the ornery octopi who sometimes punch fish just for the hell of it, and discover the huge young black hole that has astronomers shocked. ScienceSeeker editors' favourite posts within their respective areas of interest and expertise also cover many other important and exciting topics. Why not have a read, inform yourself, and indulge your scientific curiosity?

• Intranasal COVID-19 vaccines: What the Nose Knows by Ken Doyle for Promega Connections.

Intranasal vaccines offer an attractive option in the multifaceted vaccine response to COVID-19.
Credit: Marco Verch Professional Photographer via Flickr (CC BY 2.0)

• Octopus sometimes punch fish out of spite by Simon Spichak for Massive Science.
• Horseshoe crabs are critical to the biotech industry by Cathryn Sephus for Sciworthy.
• Microscopic animals glow in the dark to survive radiation by Anrup Mohanty for Sciworthy.
• Fungi create genes to 'win over' their plant friends and neighbors by Attabey Rodriguez Benitez for Massive Science.
• Sloppy science or groundbreaking idea? Theory for how cells organize contents divides biologists by Mitch Leslie for Science.
• Bacillus bacteria can keep fruits and vegetables free of Listeria by Madeline Barron for Massive Science.
• Diet and exercise can shape how your mind ages by Juliana DiGiacomo for Sciworthy.
• A new way of looking at concussions by Helen Santoro for Knowable Magazine.
• The rhythm of detachment: how a brain oscillation dissociates people from themselves and the world by Joel Frohlich for Knowing Neurons.
• The cure for Alzheimer’s and Parkinson’s may be hiding in the gut by Burcin Ikiz for NutriBites.
• How to help Covid-19 long-haulers by Syra Madad and Theodore Long for Knowable magazine.
• Fatigue is an understudied consequence of hearing loss by Adriel John Orena for Massive Science.
• Why we love sweet foods but hate vegetables by Chen Ruilin at The Skeptical Chemist.
• Waste-to-energy or wasted energy? by Mary Davis for Envirobites.
• Self-powered electronics get boost from nano-material that can be made in the kitchen by Miklos Bolza for Lab Down Under.
• December’s total solar eclipse as seen from space by Leslie Nemo for Scientific American.
• Supercomputer simulations reveal the power inside a supernova by Thomas Lewton for Quanta magazine.
• Showing up by Biochembelle at Ever on and on.
• Biggest, youngest black hole ever shocks astronomers by Ethan Siegel at Starts With A Bang.
• Transdisciplinary research: Pain or Gain? by Philip Nebe for Elephant in the Lab.

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Check back next week for more great picks!