Scientifc America

This year we learned why dogs come in so many sizes, that puppy dog eyes are a real thing and that cats don’t deserve their aloof rap

Scientists looking outside typical lab conditions find some surprises when examining the link between eating less and living longer

From reviving dead pig organs to measuring viruses in our poop, here are some of the most intriguing medical advances of the year

In one species of mason wasp, “pseudo stings” on males’ genitals let them mimic females and scare predators

Quantum telepathy, laser-based time crystals, a glow from empty space and an “unreal” universe—these are the most awesome (and awfully hard to understand) results from the subatomic realm we encountered in 2022

Neural circuits that label experiences as “good” or “bad” and the emotional meaninglessness of facial expressions are some standouts among 2022’s mind and brain breakthroughs

A new chip recreates the human vagina’s unique microbiome

Artificial intelligence can improve health, protect biodiversity and even write wine reviews

Deaths from heart disease, cancer and COVID are all higher in rural areas than urban ones, and the gap is only widening

From COVID to space exploration, graphics helped tell some the year’s most important stories

A river’s “gut” revived, snake-saving social media, an intragalactic donut, and more success stories of the year

Hate speech from the far right is increasing the risk of violence against LGBTQ+ people such as the Club Q shooting

Math made a splash this year. Here’s a look at the fascinating discoveries, mind-bending quests and important events in mathematics in 2022

After a 26-day journey that took it to lunar orbit and back, the uncrewed Orion spacecraft splashed down in the Pacific Ocean on Sunday afternoon, paving the way for future astronaut voyages to Earth’s satellite

More than one quarter of the more than 150,000 species on the IUCN Red List of Threatened Species are threatened with extinction

Suppressing memories using an “amnesic shadow” could someday lead to a gentler therapy for post-traumatic stress disorder

DNA from Denisovans, an extinct human species, that was found in the genomes of Indigenous Papuans may mold their immune system

A way to map the ancestry of dog breeds reveals the genetic basis of stereotypical dog behaviors

Two-million-year-old DNA, the world's oldest, reveals that mastodons once roamed forests in Greenland’s far northern reaches

Octopus outbursts, evading sexual cannibalism, and a human-cockatoo arms race—here are strange animal behaviors we learned about in 2022