ABC Science

SLIPPERY PROBLEM: At last a solution to the sticky problem of how to get the last drops of shampoo out of the bottle.

MEMORY JOG: Struggling to remember where you left your keys? A run might jog your memory.

Antimatter isn't just a great plot device for sci-fi stories. It's at the heart of one of the great mysteries in modern physics - why our universe has stuff in it.

GREAT MOMENTS IN SCIENCE: The worth of all currencies from stone coins to Bitcoins is based on people trusting the transaction system. Just ask the people of Yap, writes Dr Karl.

STICKY TONGUE: A tongue coated in mucus as sticky as honey is the key to a chameleon's ability to catch their prey.

MEGAFAUNA EXTINCTION: Sabre-toothed cats, one-tonne bears and sloths the size of elephants all happily coexisted with humans for up to 3000 years, but were extinct within 300 years after the climate of South America rapidly warmed.

VOCAL MAGIC: How exactly do our vocal cords produce the wide range of notes we need for singing?

The Bombay night frog favours a mating position previously unseen in frogs, making a total of seven in the Kama Sutra for Frogs.

GREAT MOMENTS IN SCIENCE: How did the Bitcoin virtual money system get started? Dr Karl takes a bite out of history.

OLD BONES: A 700,000-year-old hobbit has been discovered by a team of Australian-led researchers on the Indonesian island of Flores, shedding new light on human evolution.

SEX-REVERSED LIZARDS: The latest research on an Australian lizard that reverses its sex when exposed to high incubation temperatures has scientists stumped.

GREAT MOMENTS IN SCIENCE: There may be a whole range of reasons why it's not good to water plants in the middle of the day, but is burning the plant's leaves one of them? Dr Karl investigates the physics of plants and water.

MUNGO MAN: A new look at ancient bones with the latest DNA technology has confirmed Indigenous Australians as the continent's first people, say researchers.

HUBBLE CONSTANT: The universe is expanding faster than expected and scientists speculate the finding may be explained by a mysterious force called dark radiation.

GAS GIANT: Jupiter's famous red spot, and other stormy surface features extend 30 to 100 kilometres below the enigmatic surface of the gas giant, a new study has found.

WING COLOURS: The same gene that turned peppered moths black to camouflage them in industrial pollution is also behind colour variation in bright tropical butterflies, research shows.

WATER SOURCE: Water-rich asteroids that bombarded the Moon between 4.5 billion and 4.3 billion years ago were the main source of water in the Moon's interior, suggests a new study.

GREAT MOMENTS IN SCIENCE: Today's technology looks so slick and clean as it brings magic to your screen. But behind the scenes, our data comes at a cost, says Dr Karl.

ANCIENT JOURNEY: Ancient charred grains of rice and mung beans excavated from Madagascar provide the first archaeological evidence that ancestors of people living on the East African island known as Malagasy came from South-East Asia, scientists say.

OPIOID EFFECTS: Morphine makes chronic nerve pain worse, according to a new animal study, but some experts question whether the study's findings are relevant to humans.