
Math Puzzle: A Tetris paradox
Explore the Tetris paradox in this math puzzle

Math Puzzle: A Tetris paradox
Explore the Tetris paradox in this math puzzle

Popular drug metformin transforms your gut into a sugar sink
Researchers are finally learning the mechanism behind one of the most prescribed medicines in the U.S., primarily used to treat or prevent type 2 diabetes


Humans’ sense of smell is still evolving
A genetic study shows how smell capabilities were maintained in a hunter-gatherer population

Can ‘magic mushrooms’ help treat cocaine dependence?
Psychedelic-assisted therapy could open a new path for treating cocaine use disorder, which has no approved medications yet

Urban landscapes can boost storms—or break them up
New work shows how different storm types are shifted by cities’ microclimates

Chaotic pigeons are helping redefine what we know about learning
Pigeons seem to defy a century-old psychology law about how rewards and consequences help us learn

Watch sharks use manta rays to scratch unreachable itches
Galapagos sharks have been spotted scrubbing off parasites with help from manta rays

Math Puzzle: Go to great lengths
Find the lengths of the sides of the square in this math puzzle

See the hidden fungal network so big it could stretch to Proxima Centauri and back
Researchers have created the first high-resolution global map of the extent of one of Earth’s largest—and least visible—living networks

What AI-herding scientists can learn from watching ‘sheepdog YouTube’
Controlling a small group of “noisy” sheep holds hints for computer algorithms

Science confirms: Cats help you only when there’s something in it for them
Dogs spontaneously aid struggling humans the way young children do—whereas cats wait until they stand to benefit

Spotted lanternflies’ love of cities may be the secret to their invasion success
These eye-catching insects offer a prime opportunity for scientists to dig deep into invasion ecology and evolutionary biology