Video
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Belugas may communicate by warping a blob of forehead fat
Jiggling the “melon” like Jell-O seems to be associated with sexual behaviors, scientists say.
- Humans
Rain Bosworth studies how deaf children experience the world
Deaf experimental psychologist Rain Bosworth has found that babies are primed to learn sign language just like spoken language.
- Health & Medicine
Aimee Grant investigates the needs of autistic people
The public health researcher focuses on what kinds of support people with autism need rather than on treating the condition as a disease to cure.
- Neuroscience
Tiny treadmills show how fruit flies walk
A method to force fruit flies to move shows the insects’ stepping behavior and holds clues to other animals’ brains and movement.
- Artificial Intelligence
This robot can tell when you’re about to smile — and smile back
Using machine learning, researchers trained Emo to make facial expressions in sync with humans.
- Animals
Eavesdropping on fish could help us keep better tabs on underwater worlds
Scientists are on a quest to log all the sounds of fish communication. The result could lead to better monitoring of ecosystems and fish behavior.
- Neuroscience
Chickadees use memory ‘bar codes’ to find their hidden food stashes
Unique subsets of neurons in a chickadee’s memory center light up for each distinct cache, hinting at how episodic memories are encoded in the brain.
- Animals
By fluttering its wings, this bird uses body language to tell its mate ‘after you’
New observations suggest that Japanese tits gesture to communicate complex messages — a rare ability in the animal kingdom and a first seen in birds.
- Artificial Intelligence
AI learned how to sway humans by watching a cooperative cooking game
New research used the game Overcooked to show how offline reinforcement learning algorithms could teach bots to collaborate with — or manipulate — us.
- Psychology
Timbre can affect what harmony is music to our ears
The acoustic qualities of instruments may have influenced variations in musical scales and preferred harmonies.
- Animals
Big monarch caterpillars don’t avoid toxic milkweed goo. They binge on it
Instead of nipping milkweed to drain the plants’ defensive sap, older monarch caterpillars may seek the toxic sap. Lab larvae guzzled it from a pipette.
- Life
This is the first egg-laying amphibian found to feed its babies ‘milk’
Similar to mammals, these ringed caecilians make a nutrient-rich milk-like fluid to feed their mewling hatchlings up to six times a day.
