You can bond with your cat by narrowing your eyes and blinking slowly. It's the feline version of smiling, research suggests.

businessinsider.com – Cats purr to grab their owners' attention, but it can be difficult for us to connect with our pets. A new study suggests slow blinking may be the key.

Source: Tasmin Humphrey, Leanne Proops, Jemma Forman, Rebecca Spooner, Karen McComb. The role of cat eye narrowing movements in cat–human communication. Scientific Reports, 2020.

Water on the Moon Confirmed

the-scientist.com – So far, the bulk of the identified water molecules are too distant from one another to form ice or liquid.

Source: C. I. Honniball, et al. Molecular water detected on the sunlit Moon by SOFIA. Nature Astronomy, 2020.

40,000 Square Kilometers of the Lunar Surface Can Hold Water

nextbigfuture.com – A new study finds 40,000 square kilometers of the lunar surface has the capacity to hold water, which is about double previous estimates. 0.15% of the lunar surface is permanently shadowed, with ~10%

Source: P. O. Hayne, O. Aharonson, N. Schörghofer. Micro cold traps on the Moon. Nature Astronomy, 2020.

Dogs are humans' oldest companions, DNA shows

bbc.com – A study of dog DNA patterns shows that our "best friend" among animals is also our oldest one.

Source: Anders Bergström, et al. Origins and genetic legacy of prehistoric dogs. Science, 2020.

This Ogre-Faced Spider Can Hear Prey Through Its Legs

the-scientist.com – The tropical net-casting spider Deinopis spinosa several other arachnid species that can hear sounds from afar without the help of a web, or even ears--an ability that aids its unique hunting tactics.

Source: Jay A. Stafstrom, Gil Menda, Eyal I. Nitzany, Eileen A. Hebets, Ronald R. Hoy. Ogre-Faced, Net-Casting Spiders Use Auditory Cues to Detect Airborne Prey. Current Biology, 2020.

Humans aren't the only species who get choosier about their friends as they age. Chimps do it too, new research suggests.

businessinsider.com – As we grow older, we prefer to spend time with our closest, oldest friends rather than make new ones. Chimpanzees do the same, a study shows.

Source: Alexandra G. Rosati, et al. Social selectivity in aging wild chimpanzees. Science, 2020.

Octopuses taste their food when they touch it with their arms

newscientist.com – Octopuses use their arms to ‘lick’ prey – which researchers say adds to evidence that the cephalopods’ eight appendages are analogous to tongues with ‘hands’ and ‘brains’

Source: Lena van Giesen, Peter B. Kilian, Corey A.H. Allard, Nicholas W. Bellono. Molecular Basis of Chemotactile Sensation in Octopus. Cell, 2020.

Keeping buildings cool with colour

cbc.ca – Bob McDonald's blog: Paint that can actually cool buildings, and tinted windows that generate solar power could be important innovations in reducing energy used by buildings.

Source: Xiangyu Li, et al. Full Daytime Sub-ambient Radiative Cooling in Commercial-like Paints with High Figure of Merit. Cell Reports Physical Science, 2020.

Ultrahigh-res OLED Displays With Over 10,000 Pixels Per Inch

nextbigfuture.com – Stanford researchers and collaborators in Korea have developed a new architecture for OLED – organic light-emitting diode – displays that could enable televisions, smartphones and virtual or augmented

Source: Won-Jae Joo, et al. Metasurface-driven OLED displays beyond 10,000 pixels per inch. Science, 2020.

Are ‘Kidfluencers’ Making Our Kids Fat?

nytimes.com – Popular YouTube channels often bombard young children with thinly veiled ads for junk food, a new study finds.

Source: Amaal Alruwaily, et al. Child Social Media Influencers and Unhealthy Food Product Placement. Pediatrics, 2020.