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We summarize the week's scientific breakthroughs every Thursday.
- Artificial Intelligence
Reinforcement learning AI might bring humanoid robots to the real world
Reinforcement learning techniques could be the keys to integrating robots — who use machine learning to output more than words — into the real world.
- Animals
Sumatran orangutans start crafting their engineering skills as infants
By 6 months old, young orangutans are experimenting with construction materials, and by 6 years old, they are building platforms 20 meters in the air.
- Animals
Tiger beetles may weaponize ultrasound against bats
In response to recordings of echolocating bats, tiger beetles emit noises that mimic toxic moths that bats avoid.
- 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.
